A lot of time and effort was spent into making this program, and will continue to be updated with new features and such. Unfortunately, webhosting is not free, so all donations are appreciated and will help support the developer:
• Buy Me a Coffee Donation Link

• Developer: Pilgrim2092
May be contacted via Reddit or the Monster Hunter Gathering Hall Discord Channel
• Monster Data Analyst: MechE
• Supervisors: Cerasium, Damo, Diammentrodon, Dot [retired], Fox, HungryDave, JerryNT, Krea, Latias, Mikalya, Pokerdew, Priam, Qwas, Refia, Rice, Sasch, Tidus69, Timee, UnkemptHerald, Upgreid, & Knuckles
• Special Credit: to two good friends; for helping the developer out and teaching them Node.js. The web app would not be here today if it was not for their knowledge, kindness, and patience; for inspiring the developer to produce the app to begin with. Without them, I would not have sparked the idea to explore the old calcs as a web concept.

• Translate build cards, moves, general text, etc.

March 29th, 2026

• Hunting Horn uptimes modified; Sample Uptimes have been adjusted.

March 27th, 2026

• Artian/Gogma Bow bugs fixed; Artian Bow did not apply coating changes for specific Elements, and both Artian and Gogma Bows were not outputting Coatings on build cards correctly. This has been fixed.

March 23rd, 2026

• Moves added; Each weapon type has received three new moves named Wound 1, 2, and 3. They mimic how wound pop damage occurs in-game.
• Translations added; Translations are now done for skill descriptions.
• Skill functionality added; Partbreaker now has functionality.
• Food skill functionality added; Break-time Meal, Bulldozer Meal, Caprice Meals, and Spicy Red Meal now have functionality.

March 20th, 2026

• Quests and variants added; New event quests added.
• Custom Monster modified; High Rank, 8★, and 10★ Custom Monster difficulty values were averaged and updated with the assessment of the new quests.

March 14th, 2026

• Language function added; Users may switch language of variables in the app via index page or in settings. Still a work-in-progress.

March 6th, 2026

• Dual Blades combos added; "DBM Dodge → Screw Slicer" has been added.
• Dual Blades combos modified; Turning Tidedrill part 1 has additional hits added.

March 4th, 2026

• Hitzones added and modified; Arkveld's hitzones have been strongly adjusted to account for recent changes and its new Arch-tempered form.
• Equipment added; Azure Star Long Swords and Azure Era Bows added.
• Skill added; Convert Water Element added.
• Food Skill bug fixed; Extra skill options had a bug where the noodle skills were pushing IDs one ahead. It now correctly offers the associated skills.

March 3rd, 2026

• Equipment added; Azure Age α added to roster.

February 28th, 2026

• Equipment added; Rompomask α and Gala Suit α added to roster.

February 27th, 2026

• Delete build function added; User may now delete currently selected build.
• Meals added; Classic Tonkotsu Ramen and 100% Tonkotsu-Free Ramen added.
• Food Skills added; Extra Noodles Meal, Spicy Red Meal (Attack), and Spicy Red Meal (Energy) added.

February 25th, 2026

• Variants modified; 9★ Jin Dahaad and Nu Udra's quest HP values corrected.
• Custom Monster modified; 9★ and High Rank HP modified.
• Great Sword combos added; Shattering Reflection combo variants added to combo roster.
• Insect Glaive uptimes modified; Convert Element changed from 100% to 50%, and Offensive Guard and Synthetic Shield set to 0%.

February 22nd, 2026

• Sword & Shield uptime modified; Doshaguma's Might changed from 100% to 50%.
• Lance uptimes modified; Doshaguma's Might changed from 40% to 25% and Jin Dahaad's Revolt changed from 40% to 25%.
• Lance combos rearranged; High Thrust into Counter Charge Lv 3 moved to the bottom.
• Insect Glaives combos rearranged; Two Sidestep combos moved to the top.

February 21st, 2026

• Custom Monster "Average Rank" rage modifier changed; High Rank's rage modifier changed from x1.1 to x1.08, and Low Rank's rage modifier changed from x1.1 to x1.07 (Yes, damage will be lower. Use the difficulty scaling setting!).
• Quests and variants added; 10★ Quests added.
• Arkveld modified; Base health decreased.
• Custom Monster difficult setting added; The Custom Monster can have its various features modified based on the Star Rating in Settings. The values are based only on monster variants within that Star Ratings roster.
• Custom Monster modified; High Rank values modified to average current roster.

February 20th, 2026

• Build cards bug fixed; Hunting Horn, Gunlance, Switch Axe, and Charge Blade change their unique values when Artian/Gogma Infusions are added.
• Skill functionality added; Critical Status now has functionality and can be used with Poison and Blast damage sources.
• Skill modified; Flayer is no longer affected by Critical Boost.
• Switch Axe uptimes modified; Sample Uptimes have been adjusted.
• Uptime added; Doshaguma's Might now has an adjustable uptime in Uptime Settings.
• Light Bowgun combo added; Dragon Ammo combos were added to roster.
• Heavy Bowgun combo added; Dragon Ammo combo was added to roster.

February 18th, 2026

• Great Sword move added; "[Shattering Reflection] Charged Slash (Lv 3 charge)" added to move roster.

February 17th, 2026

• Equipment added; Shatterseal weapon tree added to Great Sword roster. Arvulcan γ and Sororal α added to armour roster.
• Talisman Skills modified; Flayer and Weakness Exploit levels increased.
• Sharpness bug fixed; Weapons that start with max Sharpness correctly now output expected values.

February 13th, 2026

• Dual Blades combo added; "[Corrupted Mantle] Sixfold → Blade Dance" combo was added to the roster.

February 12th, 2026

• Poison and Blast damage updated; Damage is now dependent on Rank.
• Skill modified; Flayer Lv 4 and 5 Low Rank values modified to 200 and 250 respectively.

February 10th, 2026

• Custom Monster and functionality added; Custom Monster replaces Theoretical Average. Its hitzones can be modified in Settings.
• Theoretical Averages removed; Theoretical Average has been removed and replaced with "Custom Monster."

February 9th, 2026

• Theoretical Averages added; New variants of the Theoretical Average added for each Element. They only account for the individual Element or none.

February 8th, 2026

• Kinsects modified; Icons now reflect the Kinsect's damage typing.
• Heavy Bowgun combos added; New variations of Element combos have been added.
• Heavy Bowgun combos modified; Durations of combos have changed.

February 6th, 2026

• Long Sword sample uptimes modified; New values inputted.
• Charge Blade combos added; "AEDF Loop" combos added.
• Charge Blade combos modified; "SAED Combo" has an additional SAED tick added.
• Charge Blade sample uptimes modified; New values inputted.

February 4th, 2026

• Quests updated; All quests currently in the game are now installed.
• Theoretical Average updated; The Theoretical Average in High Rank has been updated to account for the newly added quests.
• HP Range modifier added; A modifier above the Radar Graph has been added that allows the user to adjust Monster HP based on the Quest.
• Capture modifier added; A modifier in the Buffs and Utilities can be found that changes the Monster's HP to when it is capturable.
• Build card generation updated; Talisman slots are now dependent on if a decoration is equipped.
• Skill Criticals updated; Bad Blood, Flayer, and Scorcher now have multipliers reflecting Low or High Rank.
• Element Cap warning added; A warning will display if the hunter hits the Element Cap that does not account for uptimes.

February 2nd, 2026

• Dynamic resolution updated; Made improvements on resolutions.
• Light Bowgun combos added; Normal RF combos added.

January 28th, 2026

• Sword & Shield weapon added; Felyne Tree weapons added.
• Sword & Shield moves modified; Charged Chop and Slice now activate Charge Master when equipped.
• Status cap fixed; Status cap now outputs correct Status cap in Stats menu.

January 27th, 2026

• URL Extension fix; Share link had characters that were not properly being escaped. If you have a URL link with %2525 or %252525 embedded into it, the link will be broken. Either create a new link, or edit them to be %25 or empty.
• Insect Glaive moves added; Rising Spiral Slash has had multiple iterations created that enforce the user's expected Extracts, and to give the user more control about RSS outcomes.
• Insect Glaive combos modified; All combos using Rising Spiral Slash have been switched to the "No Extract" version.
• Insect Glaive warning added; Depending on the user's selected Extracts and combo, a warning will be outputted if combo is illegal.

January 25th, 2026

• Build card template modified; Build card generation is now past the prototype stage and is completed.
• Build card image export option added; Build cards can now be exported via button.
• Mobile link sharing bug fixed; Links clicked on mobile devices should now work as expected.
• Long Sword combo added; "Crit Draw Loop (Red)" added to combo pool.
• Long Sword move added; "Spirit Blade I (draw, gauge, red spirit gauge)" was added to move pool.

January 23rd, 2026

• Sneak Attack correction; Sneak attack was set to be considered sheathed, activating Critical and Punishing Draw. It is no longer considered sheathed.

January 22nd, 2026

• Skill correction; Binding Counter II was incorrectly outputting +40 Raw. It is now outputting +50 Raw.
• Gogma Group Skills removed; Festival Spirit and Master of the First Group Skills removed from the selectable options on Gogmazios weapons.
• Stat menu bug fixed; Burst was not displaying properly due to improperly set Paralysis and Sleep flags.

January 17th, 2026

• Helm added; Eager Wudwud α added.
• Insect Glaive combos added; "Spiral Combo (Two Sidesteps, Left → Forward)" and "Descending Slash Loop (Two Sidesteps, Left → Forward)" added to combo selection.

January 15th, 2026

• Stats for Nerds updated; The Poison Average now shows Poison Uptime. The number of Blast Triggers now appears beside the Blast Average.

January 14th, 2026

• Math Hunter IDs released; IDs for URL extension released and can be found in the left panel on the index page.
• Build card link updated; Selecting Build card link now opens up to a new tab.
• Status Max Cap added; The Status Max Cap of x1.6 of base has been added to the formula.
• Coalescence skill modified; Coalescence now affects Status. It also has modifiers of x1.05, x1.1, and x1.15 with their respective levels for all weapon types.
• Status stats modified; Burst no longer is added to Status stats in Stats menu. Just a visual issue, was not affecting damage calculations.
• Paralysis and Sleep stats modified; Skills associated with Paralysis and Sleep now appropriately report values in Stats menu.

January 11th, 2026

• Long Sword moves added; Crimson Slash I 1 and 2 variants added to account for Critical Draw/Punishing Draw.
• Long Sword combos added; "Spirit Helmbreaker + Spirit Release Slash Combo," "Iai Spirit Slash (Red)," and "ISS → Crimson I Combo" combos added.
• Long Sword combos modified; Combos that activate Critical Draw have been adjusted to use the moves that activate it.

January 10th, 2026

• Great Sword combos added; Duplicate combos added under different names due to confusion. Old versions are below.
• Insect Glaive weapon patch; Attack Focus on Limbo Llor was incorrectly outputting +30 Element. This has been corrected.
• Light Bowgun combos added and modified; Element, Piercing, and Normal combos removed. Element Rapid Fire Mode combos added.

January 7th, 2026

• Build card generation updated; Gunlance, Switch Axe, Light Bowgun, Heavy Bowgun, and Bow can now generate build cards. Dark Arts, Dragon Phial, Poison Phial, and Shelling now output appropriate values.

January 6th, 2026

• Skills modified; Burst values corrected for Long Sword and Sword & Shield. Critical Draw and Punishing Draw are now applied on sheathed attacks.
• Setting added; Start from Sheathe toggle added.
• Uptimes option added; Default and Sample Uptimes (unique to weapon type) added.

January 5th, 2026

• Long Sword moves modified; Skill Criticals enabled on Spirit Thrust, Spirit Helm Breaker, and Spirit Blade II.
• Lance combos added; "Grand Retribution Thrust → Finishing Twin Thrust" and "Grand Retribution Thrust → Triple Thrust" added to combo options.
• Lance moves modified; Skill Criticals enabled on Triple Thrust.
• Gunlance moves modified; Skill Criticals enabled on Wyrmstake Full Blast and Multi Wyrmstake Full Blast.
• Heavy Bowgun moves modified; Skill Criticals enabled on Wyvernheart Ignition and Wyvernpiercer Ignition.
• Bow moves modified; Majority of Bow's moves have been buffed. Skill Criticals enabled on Thousand Dragons, Charged Shots with Pierce Coating, and Tracking Arrows for Charged Shot, Power Shot, Power Volley.
• Skill modified; Ballistics now increases Arrow damage. Xu Wu's Vigor was buffed.

January 3rd, 2026

• Database resource allocation fix installed; On December 31st, 2025, there was a database crash due to the amount of user requests made that caused the web manager to suspend the account. A stall has been implemented so database resource calls are not so heavy.
• Light Bowgun moves modified; Normal and Elemental Ammo buffed.
• Light Bowgun moves added; Slicing Ammo added.
• Heavy Bowgun moves modified; Wyvernheart, Wyvernpiercer, and Wyvernblast Ignition buffed. Focus Blast: Wyvern Howl buffed.
• Heavy Bowgun stats modified; Ignition Mode ST I and II are now only x1.15 and x1.3 respectively for all affected moves.
• Affinity Check feature installed; Affinity Cap checks to see if Affinity reaches 100% assuming all Uptimes are 100%.
• Dynamic resolution updated; 4k resolution no longer hides DPS and CPK above statbox.
• Skills modified; Bad Blood average has been improved for faster hitting weapons. Flayer activation rate has been updated.
• Uptime added; Jin Dahaad's Revolt uptime has been added.

December 23rd, 2025

• Prototype Build Card function installed.
• Armour added; Dahaad Shardmail γ added.
• Talisman skills modified; Agitator and Coalescence now have a third level in the first Talisman skill slot.
• Meal added; Lumenhymn Ceremonial Platter added.

December 22nd, 2025

• Element Display bug fixed; Element Cap no longer displays a floating point.
• Great Sword moves modified; Charged Slash Lv 2-3, Strong Charged Slash Lv 1-3, and True Charged Slash Lv 1-3 buffed. Strong Wide Slash now uses the skill Charge Master.
• Insect Glaive combo added; Descending Slash Loop (Forward Sidestep Slash Combo) was added.
• Bow moves modified; Piercing Charged Shot, Piercing Power Shot, and Piercing Power Volley buffed.

December 20th, 2025

• Quests added.
• Monster added; Gogmazios added to monster parameters.
• Equipment added; Ceremonial, Orion, Blessed Waistchain, Analytic E.Y.E., and Mirror Visor sets added.
• Switch Axe moves modified; Many moves had their motion values increased.
• Skill added; Lumenhymn Prayer skill added.
• Gogma Set Bonuses reduced; Removed Prayer skills from possible pool.

December 19th, 2025

• Skills modified; Elemental Absorption now outputs different Element values based on weapon type. Bad Blood now has decay with delayed hits in combos.

December 18th, 2025

• Share link bug fixed; Artian Infusions and Gogma Focus functions did not like having no empty slot. Was fixed by adding empty row. Transcend no longer resets deco slots after leaving page.
• Sword & Shield move modified; Advanced Slash motion value increased.
• Dual Blades moves modified; Demon Flurry Rush 1 and 2 now trigger Skill Criticals.
• Hammer moves modified; Charge Up now influences charged attacks.
• Hunting Horn moves modified; Performance Beat 1 and 2 motion values increased.
• Lance moves modified; Mid Thrust 1, 2, and 3, High Thrust 3, Triple Thrust 1, 2, and 3, Double Counter Thrust 1, and Grand Retribution Thrust motion values increased. Triple Thrust 1, 2, and 3 element multipliers increased.
• Charge Blade moves added; SAED from Guard moves added.
• Charge Blade move modified; Savage Axe Slash and Power Axe tick motion values increased. Axe: Amped Element Discharge, Axe: Super Amped Element Discharge and Axe: Amped Element Discharge Follow-up now activate Skill Criticals.
• Insect Glaive combo added; Spiral Combo alternative was added
• Insect Glaive combos modified; additional Kinsect hits removed.
• Insect Glaive move modified; Sidestep Slash (Triple Up), Sidestep Slash Combo (Triple Up), Descending Slash 1-4 (no charge) and Strong Descending Slash 1-6 (no charge) added. Descending Slash, Strong Descending Slash, Descending Thrust, and Strong Descending Thrust first and last hits now trigger Skill Criticals.
• Skills modified; Bad Blood, Flayer, Scorcher, Whiteflame Torrent values adjusted.

December 17th, 2025

• Title Update #4 Release
• Gogmazios weapons added.
• Gogmazios Reinforcements function added.
• Transcend function added.
• Skill added; Gogmapocalypse added.
• Max Defense values modified.

December 13th, 2025

• Hammer combos modified; Durations adjusted.

November 29th, 2025

• Dynamic resolution installed on index page.

November 26th, 2025

• Google AdSense installed.

November 25th, 2025

• Dual Blades weapons added; Tasty Blades and Well-done Blades added.
• Skill added; Grillmaster added.

November 23rd, 2025

• Switch Axe moves modified; Full Release Slash now applies Charge Master.

November 22nd, 2025

• Lance combos modified; all combos have had their durations increased.
• Lance combo added; "High Thrust I → Wide Sweep → High Thrust III → Triple Thrust" has been added to default combo roster.

November 18th, 2025

• Dynamic resolution installed on calculator pages.
• Some touchscreen errors corrected; Issues with Uptime fixed. Combo creation still needs to be fixed.

November 9th, 2025

• Gunlance combos modified; "Shelling → Multi Wyrmstake Full Blast" combos have been corrected to have 9 followed by 15 Wyrmstake (ticks); was originally 9 followed by 10 Wyrmstake (ticks); duration was modified to account for Load Shells Lv 1 reload speed.
• Gunlance combos added; "Shelling → Multi Wyrmstake Full Blast → Wyvernfire x 2" has been added.

November 8th, 2025

• Changed move selection in custom combos from double click to single click.
• Partially installed responsive web design.
• Switch Axe calculations modified; Element Cap calculations modified for Element Phial moves.

November 7th, 2025

• Switch Axe moves modified; Heavenward Flurry adjusted to have Airborne modifier.

November 2nd, 2025

• Monster Hitzones adjusted; Ajarakan's hitzones renamed and repositioned; [Tempered] Arkveld + G. Arkveld wound hitzone added and a Chainblade hitzone removed; Balahara weak point hitzone added; [Tempered] Chatacabra wound hitzone added and Foreleg hitzone removed; Gravios hitzone added; G. Ebony Odogaron weak point hitzones repositioned and broken Tail Tip hitzone removed; G. Fulgur Anjanath weak point hitzone repositioned and Leg and Tail seecond state hitzones removed; [Tempered] G. Rathalos wound and weak point hitzones added; [Tempered] Hirabami wound and weak point hitzone added; Jin Dahaad hitzones readjusted; Lagiacrus back hitzone adjusted; Mizutsune weak point hitzone added; Nerscylla hitzones readjusted; [Tempered] Nu Udra Tentacle wound and weak point hitzone added and Membrane first and second state hitzones removed; Rathalos weak point hitzone added; Rathian weak point hitzone added; [Tempered] Rompolo Back and Tail hitzones added and weak point hitzone repositioned; [Tempered] Seregios Torso, Wings, and Tail wound hitzones added; Uth Duna Forelegs and Hind legs first state hitzones added; [Tempered] Yian Kut-Ku Neck wound hitzone added; Zoh Shia weak point and first state hitzones added.
• Insect Glaive moves modified: Kinsect is now affected by Enraged modifier.
• Fixed Yian Kut-Ku Low Rank variant bug.

October 31st, 2025

• Food skills fully installed.
• Defender Meal (Lo), Defender Meal (Hi), and Piping-Hot Meal modifiers added.

October 30th, 2025

• Insect Glaive moves modified; Kinsect Hitzone Multiplier corrected to be based on the Kinsect's Attack Type.
• Food skills partially installed.

October 29th, 2025

• Switch Axe combos modified; Morph Loop combos have been corrected to have Sword: Morph Double Slash.

October 28th, 2025

• Web app publicly released.
• Great Sword moves modified; Status Multipliers increased for Strong Charged Slash, True Charge Slash, Strong Wide Slash, Offset Rising Slash, and Leaping Wide Slash.