• Log InLog In
  • Register
Liquid`
Team Liquid Liquipedia
EDT 12:03
CEST 18:03
KST 01:03
  • Home
  • Forum
  • Calendar
  • Streams
  • Liquipedia
  • Features
  • Store
  • EPT
  • TL+
  • StarCraft 2
  • Brood War
  • Smash
  • Heroes
  • Counter-Strike
  • Overwatch
  • Liquibet
  • Fantasy StarCraft
  • TLPD
  • StarCraft 2
  • Brood War
  • Blogs
Forum Sidebar
Events/Features
News
Featured News
HomeStory Cup 27 - Info & Preview18Classic wins Code S Season 2 (2025)16Code S RO4 & Finals Preview: herO, Rogue, Classic, GuMiho0TL Team Map Contest #5: Presented by Monster Energy6Code S RO8 Preview: herO, Zoun, Bunny, Classic7
Community News
Weekly Cups (June 23-29): Reynor in world title form?12FEL Cracov 2025 (July 27) - $8000 live event14Esports World Cup 2025 - Final Player Roster14Weekly Cups (June 16-22): Clem strikes back1Weekly Cups (June 9-15): herO doubles on GSL week4
StarCraft 2
General
Weekly Cups (June 23-29): Reynor in world title form? StarCraft Mass Recall: SC1 campaigns on SC2 thread The SCII GOAT: A statistical Evaluation How does the number of casters affect your enjoyment of esports? Esports World Cup 2025 - Final Player Roster
Tourneys
FEL Cracov 2025 (July 27) - $8000 live event HomeStory Cup 27 (June 27-29) WardiTV Mondays SOOPer7s Showmatches 2025 $200 Biweekly - StarCraft Evolution League #1
Strategy
How did i lose this ZvP, whats the proper response Simple Questions Simple Answers [G] Darkgrid Layout
Custom Maps
[UMS] Zillion Zerglings
External Content
Mutation # 480 Moths to the Flame Mutation # 479 Worn Out Welcome Mutation # 478 Instant Karma Mutation # 477 Slow and Steady
Brood War
General
ASL20 Preliminary Maps BGH Auto Balance -> http://bghmmr.eu/ BW General Discussion StarCraft & BroodWar Campaign Speedrun Quest Unit and Spell Similarities
Tourneys
[Megathread] Daily Proleagues [BSL20] GosuLeague RO16 - Tue & Wed 20:00+CET The Casual Games of the Week Thread [BSL20] ProLeague LB Final - Saturday 20:00 CET
Strategy
Simple Questions, Simple Answers I am doing this better than progamers do.
Other Games
General Games
Stormgate/Frost Giant Megathread Nintendo Switch Thread Path of Exile What do you want from future RTS games? Beyond All Reason
Dota 2
Official 'what is Dota anymore' discussion
League of Legends
Heroes of the Storm
Simple Questions, Simple Answers Heroes of the Storm 2.0
Hearthstone
Heroes of StarCraft mini-set
TL Mafia
TL Mafia Community Thread Vanilla Mini Mafia
Community
General
US Politics Mega-thread Things Aren’t Peaceful in Palestine Stop Killing Games - European Citizens Initiative Trading/Investing Thread Russo-Ukrainian War Thread
Fan Clubs
SKT1 Classic Fan Club! Maru Fan Club
Media & Entertainment
Anime Discussion Thread [Manga] One Piece [\m/] Heavy Metal Thread Korean Music Discussion
Sports
2024 - 2025 Football Thread Formula 1 Discussion NBA General Discussion TeamLiquid Health and Fitness Initiative For 2023 NHL Playoffs 2024
World Cup 2022
Tech Support
Computer Build, Upgrade & Buying Resource Thread
TL Community
The Automated Ban List
Blogs
from making sc maps to makin…
Husyelt
Blog #2
tankgirl
Game Sound vs. Music: The Im…
TrAiDoS
StarCraft improvement
iopq
Heero Yuy & the Tax…
KrillinFromwales
Trip to the Zoo
micronesia
Customize Sidebar...

Website Feedback

Closed Threads



Active: 790 users

Brood War web app to calculate unit interactions

Forum Index > BW General
Post a Reply
1 2 Next All
facecsgo
Profile Joined March 2024
12 Posts
Last Edited: 2024-05-17 01:51:42
May 10 2024 15:10 GMT
#1
https://bwcalc.com

I made a web app to calculate hits to kill and time to kill for units at all upgrade levels, including damage modifiers, hp and shield regen, burn damage, unit-specific upgrades and it is extremely accurate.

I'd like to add more things over time if people would use it, like # of medics healing, # SCVs repairing, estimations for splash damage, more buildings, spell damages.

If you have any feedback for changes or think you have found an error, please let me know.

edit May 12 2024: updated to add some unit information and a checkbox to show +/-% changes instead of raw numbers

edit May 13 2024: accuracy example, 2 Dragoons vs 2 carriers, 0.6 seconds or 1.76% variance. Extremely small variance for such a long engagement, units also have +/- a few frame randomness in attack animations: https://i.imgur.com/oXeo3f9.png

edit May 14 2024: added a checkbox for RANDOM miss chance. I'm going to be honest, it's random, like the game engine, which means it has chaotic results. On average it is approximately ~2x hits to kill with uphill miss chance, but honestly it's interesting to see the full range of randomness.

edit May 16 2024: created liquipedia page that is extremely detailed in how the calculations work and the limitations that exist (Wiki)BW Calculator
Psyonic_Reaver
Profile Blog Joined June 2007
United States4336 Posts
May 10 2024 20:03 GMT
#2
This is awesome. Thank you!
So wait? I'm bad? =(
prosatan
Profile Joined September 2009
Romania7965 Posts
May 10 2024 21:36 GMT
#3
Yessirrr
Lee JaeDong Fighting! The only church that illuminates is the one that burns.
MildCocoA
Profile Joined October 2010
Korea (South)129 Posts
Last Edited: 2024-05-11 02:24:19
May 11 2024 02:21 GMT
#4
Thank you. I added it to Liquipedia (Wiki)Tools
[AS]Rattus
Profile Joined March 2017
427 Posts
May 12 2024 08:33 GMT
#5
Arbiter needs 9999 or probably more attacks to kill a 2/3 Carrier.
The more you know
prosatan
Profile Joined September 2009
Romania7965 Posts
May 12 2024 09:15 GMT
#6
On May 12 2024 17:33 [AS]Rattus wrote:
Arbiter needs 9999 or probably more attacks to kill a 2/3 Carrier.
The more you know

And also firebat, who needs the same amount to kill a fully upgraded ultralisk
Lee JaeDong Fighting! The only church that illuminates is the one that burns.
LUCKY_NOOB
Profile Blog Joined June 2013
Bulgaria1423 Posts
Last Edited: 2024-05-12 12:27:38
May 12 2024 12:27 GMT
#7
Nice!

Mischance calculations come to mind as another feature.

Also is this included:

The chance of an "air shot" is 1/256; that is, with the two units on equal elevation (including air units), a ranged unit's chance to hit is 99.609375%.

Keep up the great work! <3 <3 <3
ko-fi.com/luckynoob
facecsgo
Profile Joined March 2024
12 Posts
Last Edited: 2024-05-12 15:17:40
May 12 2024 15:16 GMT
#8
On May 12 2024 17:33 [AS]Rattus wrote:
Arbiter needs 9999 or probably more attacks to kill a 2/3 Carrier.
The more you know


I had to test this one directly before because it broke my calculator.
A no upgrade arbiter cannot kill a 2/3 carrier ever.
Shield regens before arbiter hits. Armor and shield armor upgrades + base armor reduce damage below 0. Since the arbiter hits the shields, it does not deal the minimum hp damage of 0.5.
So the carrier just goes 0 shields to 1 shields to 0 shields and the health bar never takes damage.

Anything that displays “9999” just means >1000 and I stop the calculations, just because it’s kind of meaningless at that point and I don’t want calculations to take forever!
WGT-Baal
Profile Blog Joined June 2008
France3352 Posts
May 13 2024 00:11 GMT
#9
This is seriously amazing, great job!
Horang2 fan
facecsgo
Profile Joined March 2024
12 Posts
Last Edited: 2024-05-13 02:01:01
May 13 2024 02:00 GMT
#10
On May 12 2024 21:27 LUCKY_NOOB wrote:
Nice!

Mischance calculations come to mind as another feature.

Also is this included:

The chance of an "air shot" is 1/256; that is, with the two units on equal elevation (including air units), a ranged unit's chance to hit is 99.609375%.

Keep up the great work! <3 <3 <3


Only problem with miss chance is it adds randomness to the calculation, i.e. every time you calculate it would be different.
Like take Zealot vs Zergling, 3 hits to kill. Would I just 1/256 you press the calculation button and it says 4 hits instead? or always show 3 / 255 * 256 = 3.01 hits to kill?
Maybe there's another way to add it but I'm not sure how to make it make sense.


Separately: I added unit info tables that show some basic info as well as a checkbox that lets you toggle between raw numbers and percent change
I advise you ctrl+f5 on the website to update the formatting as I changed it a bit
Peeano
Profile Blog Joined March 2009
Netherlands4980 Posts
May 13 2024 09:09 GMT
#11
Definitely not bother to include misses into calculations. Just add high ground, tree and regular miss chances as a note.

Btw do we even know if 2 back to back shots (1/256) can be misses? I wouldn't be surprised if Blizz added an exception that it cannot happen. In all my accumulated playing and watching I don't recall seeing it happen.
FBH #1!
facecsgo
Profile Joined March 2024
12 Posts
May 13 2024 13:19 GMT
#12
On May 13 2024 18:09 Peeano wrote:
Definitely not bother to include misses into calculations. Just add high ground, tree and regular miss chances as a note.

Btw do we even know if 2 back to back shots (1/256) can be misses? I wouldn't be surprised if Blizz added an exception that it cannot happen. In all my accumulated playing and watching I don't recall seeing it happen.


This would make a little more sense, but it still isn't an exact calculation since missing is random, so the results could change every time you hit calculate (unless I just say the player misses every other hit).
I do think I heard different doodads have different miss chances but I do not think that's documented anywhere, so I would only do the ~53.125% chance to hit on high ground.
MapleLeafSirup
Profile Joined July 2009
Germany950 Posts
May 13 2024 14:57 GMT
#13
Haha Wraith vs Egg: 9999
facecsgo
Profile Joined March 2024
12 Posts
Last Edited: 2024-05-13 18:21:04
May 13 2024 16:21 GMT
#14
On May 13 2024 23:57 MapleLeafSirup wrote:
Haha Wraith vs Egg: 9999


9999 only means >1000, but I enjoy looking into these so I did.
This actually appears to be an error based on the assumption that Eggs regenerate HP. It appears that Eggs and Cocoons do not regenerate health, in my testing just now, so that is a bug I need to fix. I had never tested it before.

Wraith should deal the games minimum 0.5 damage to an egg, meaning it will kill the egg in 400 hits.

This bug has been fixed

(Not related to the above reply)
Edit: I added an example of the calculation accuracy to the main post, which is also here: https://i.imgur.com/oXeo3f9.png
IntoTheWow
Profile Blog Joined May 2004
is awesome32274 Posts
May 13 2024 23:48 GMT
#15
Pretty cool! Thanks for sharing
Moderator<:3-/-<
facecsgo
Profile Joined March 2024
12 Posts
May 14 2024 23:37 GMT
#16
On May 12 2024 21:27 LUCKY_NOOB wrote:
Nice!

Mischance calculations come to mind as another feature.

Also is this included:

The chance of an "air shot" is 1/256; that is, with the two units on equal elevation (including air units), a ranged unit's chance to hit is 99.609375%.

Keep up the great work! <3 <3 <3


On May 13 2024 18:09 Peeano wrote:
Definitely not bother to include misses into calculations. Just add high ground, tree and regular miss chances as a note.

Btw do we even know if 2 back to back shots (1/256) can be misses? I wouldn't be surprised if Blizz added an exception that it cannot happen. In all my accumulated playing and watching I don't recall seeing it happen.


I added random miss chance checkbox, 136/256 per (Wiki)Damage
It is fully random so results change every single time
Cheesefome
Profile Joined May 2016
311 Posts
Last Edited: 2024-05-15 04:59:09
May 15 2024 04:57 GMT
#17
Wow so cool man!! Love SC community they contribute so much.

Will there ever be an app version instead of a link/browser?
facecsgo
Profile Joined March 2024
12 Posts
May 15 2024 14:54 GMT
#18
On May 15 2024 13:57 Cheesefome wrote:
Wow so cool man!! Love SC community they contribute so much.

Will there ever be an app version instead of a link/browser?


Ironically, I made it a website because I assumed if I released a desktop app that everyone would assume it's malware or something!
I don't really plan to release a desktop app because it'd be a struggle to maintain both, with the website I can push bug fixes really quickly (i.e. like when I found out that I had Eggs and Cocoons regenerating HP, but they do not).
I'm also still intending to add a lot of features over time.
I feel like a Desktop app would just make all of this harder & slower so it's not something I'm interested in doing
LUCKY_NOOB
Profile Blog Joined June 2013
Bulgaria1423 Posts
Last Edited: 2024-05-16 13:52:43
May 16 2024 13:52 GMT
#19
On May 15 2024 08:37 facecsgo wrote:
Show nested quote +
On May 12 2024 21:27 LUCKY_NOOB wrote:
Nice!

Mischance calculations come to mind as another feature.

Also is this included:

The chance of an "air shot" is 1/256; that is, with the two units on equal elevation (including air units), a ranged unit's chance to hit is 99.609375%.

Keep up the great work! <3 <3 <3


Show nested quote +
On May 13 2024 18:09 Peeano wrote:
Definitely not bother to include misses into calculations. Just add high ground, tree and regular miss chances as a note.

Btw do we even know if 2 back to back shots (1/256) can be misses? I wouldn't be surprised if Blizz added an exception that it cannot happen. In all my accumulated playing and watching I don't recall seeing it happen.


I added random miss chance checkbox, 136/256 per (Wiki)Damage
It is fully random so results change every single time


Amazing! Yeah it was a suggestion in the spirit of completeness. Not that it's the most important info in the world but it's a nice touch. <3

I even use Discord from my browser these days. Only point of a program (calling it an app is too new school for my taste lel) is to have extra feature or if Flash forbid the site goes down the service lives on in the community.

I added it to the Build Orders document:

https://docs.google.com/spreadsheets/d/1O0XEPA9ZxqkMsul7UjEt1wotvkBE1drB/edit?pli=1#gid=1989302709

Keep up the great work! <3
ko-fi.com/luckynoob
rtyrt7
Profile Joined August 2018
46 Posts
May 16 2024 19:20 GMT
#20
Really nice job! Thank you!
1 2 Next All
Please log in or register to reply.
Live Events Refresh
Next event in 7h 58m
[ Submit Event ]
Live Streams
Refresh
StarCraft 2
Nina 356
ProTech66
StarCraft: Brood War
Calm 7866
Sea 2122
EffOrt 711
Mini 455
Shuttle 452
BeSt 331
Soma 313
Stork 245
Snow 192
Light 100
[ Show more ]
Mind 76
Barracks 55
Trikslyr50
Rush 47
Shinee 43
Hyun 42
Movie 36
Pusan 28
Backho 27
scan(afreeca) 19
ajuk12(nOOB) 11
Shine 9
Dota 2
Gorgc9718
Counter-Strike
fl0m824
Super Smash Bros
Mew2King138
Heroes of the Storm
Khaldor112
Other Games
hiko1210
Lowko406
Fuzer 238
ArmadaUGS73
QueenE53
Organizations
StarCraft 2
Blizzard YouTube
StarCraft: Brood War
BSLTrovo
sctven
[ Show 16 non-featured ]
StarCraft 2
• StrangeGG 72
• poizon28 31
• intothetv
• AfreecaTV YouTube
• Kozan
• IndyKCrew
• LaughNgamezSOOP
• Migwel
• sooper7s
StarCraft: Brood War
• BSLYoutube
• STPLYoutube
• ZZZeroYoutube
Dota 2
• WagamamaTV661
• lizZardDota287
League of Legends
• Jankos175
Other Games
• Shiphtur53
Upcoming Events
PiGosaur Monday
7h 58m
The PondCast
17h 58m
Replay Cast
1d 7h
RSL Revival
1d 17h
ByuN vs Classic
Clem vs Cham
WardiTV European League
1d 23h
Replay Cast
2 days
RSL Revival
2 days
herO vs SHIN
Reynor vs Cure
WardiTV European League
2 days
FEL
2 days
Korean StarCraft League
3 days
[ Show More ]
CranKy Ducklings
3 days
RSL Revival
3 days
FEL
3 days
Sparkling Tuna Cup
4 days
RSL Revival
4 days
FEL
4 days
BSL: ProLeague
5 days
Dewalt vs Bonyth
Replay Cast
6 days
Replay Cast
6 days
Liquipedia Results

Completed

Proleague 2025-06-28
HSC XXVII
Heroes 10 EU

Ongoing

JPL Season 2
BSL 2v2 Season 3
BSL Season 20
Acropolis #3
KCM Race Survival 2025 Season 2
CSL 17: 2025 SUMMER
Copa Latinoamericana 4
Championship of Russia 2025
RSL Revival: Season 1
Murky Cup #2
BLAST.tv Austin Major 2025
ESL Impact League Season 7
IEM Dallas 2025
PGL Astana 2025
Asian Champions League '25
BLAST Rivals Spring 2025
MESA Nomadic Masters
CCT Season 2 Global Finals
IEM Melbourne 2025
YaLLa Compass Qatar 2025

Upcoming

CSLPRO Last Chance 2025
CSLPRO Chat StarLAN 3
K-Championship
uThermal 2v2 Main Event
SEL Season 2 Championship
FEL Cracov 2025
Esports World Cup 2025
StarSeries Fall 2025
FISSURE Playground #2
BLAST Open Fall 2025
BLAST Open Fall Qual
Esports World Cup 2025
BLAST Bounty Fall 2025
BLAST Bounty Fall Qual
IEM Cologne 2025
FISSURE Playground #1
TLPD

1. ByuN
2. TY
3. Dark
4. Solar
5. Stats
6. Nerchio
7. sOs
8. soO
9. INnoVation
10. Elazer
1. Rain
2. Flash
3. EffOrt
4. Last
5. Bisu
6. Soulkey
7. Mini
8. Sharp
Sidebar Settings...

Advertising | Privacy Policy | Terms Of Use | Contact Us

Original banner artwork: Jim Warren
The contents of this webpage are copyright © 2025 TLnet. All Rights Reserved.