• Log InLog In
  • Register
Liquid`
Team Liquid Liquipedia
EDT 17:29
CEST 23:29
KST 06:29
  • 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
[ASL22] Ro16 Preview: Holy Diver3[ASL22] Ro16 Preview: Rough Waters10[ASL22] Ro24 Preview: Siren's Call8[ASL22] Ro24 Preview: Summer's End9Serral wins HomeStory Cup 2915
Community News
StarCraft open world shooter announced at BlizzCon75Weekly Cups (Aug 30-Sep 7): herO thrives amid growing schism10Official StarCraft website teases new content ahead of BlizzCon?174Stellar Fest TWO the Moon (Dec 16-20)9Weekly Cups (August 24-30): Patches' balance mod takes over3
StarCraft 2
General
StarCraft open world shooter announced at BlizzCon How do you feel about the StarCraft shooter announcement at BlizzCon 2026? Balance hotfix patch 5.0.16b (July 16) Team Liquid Map Contest #22: Results and Winners Weekly Cups (Aug 30-Sep 7): herO thrives amid growing schism
Tourneys
RSL Revival: Season 6 - Qualifiers and Main Event RSL goes to London! 2026 Offline Finals Nov 21-22 Sparkling Tuna Cup - Weekly Open Tournament KSL Week #92 IntoTheTV X SOOP SC2 League : Weekly & Monthly
Strategy
[G] Having the right mentality to improve
Custom Maps
Nexus Wars 2021 GUIDE [M] (2) Industrial Park
External Content
Mutation # 543 Enhanced Defenses The PondCast: SC2 News & Results Mutation # 542 The Ascended Mutation # 541 Binary Choice
Brood War
General
Official StarCraft website teases new content ahead of BlizzCon? [ASL22] Ro16 Preview: Holy Diver ASL22 General Discussion BGH Auto Balance -> http://bghmmr.eu/ Broodwar Prediction Market
Tourneys
[ASL22] Ro16 Group C [ASL22] Ro16 Group B [ASL22] Ro16 Group A Escore Tournament - Season 3
Strategy
Replay Review Process - What do you do? Simple Questions, Simple Answers Odyssey Mineral Stack Saturation Game Theory for Starcraft
Other Games
General Games
Diablo IV Nintendo Switch Thread EVE Corporation [Maplestory Hardcore] Let's Play~!! General RTS Discussion Thread
Dota 2
Official 'what is Dota anymore' discussion
League of Legends
[TL LoL EUW IHs] Teemo shall perish TSM pausing esports and CLG Dead
Heroes of the Storm
Heroes of the Storm 2.0
Hearthstone
Deck construction bug
TL Mafia
TL Mafia Community Thread
Community
General
US Politics Mega-thread UK Politics Mega-thread Things Aren’t Peaceful in Palestine Trading/Investing Thread Russo-Ukrainian War Thread
Fan Clubs
MarineLorD Fan Club The Creator Fan Club The ShoWTimE Fan Club
Media & Entertainment
[Manga] One Piece Movie Discussion! Diablo Animated Series on Netflix
Sports
Football (Soccer) Thread TeamLiquid Health and Fitness Initiative For 2023 MLB/Baseball 2023
World Cup 2022
Tech Support
Computer Build, Upgrade & Buying Resource Thread
TL Community
The Automated Ban List Northern Ireland Global Starcraft
Blogs
Virtual Romance, Real-Life C…
TrAiDoS
Regacy Esports:Our Goa…
regacyesports
Dreaming of BW patches (mod…
c3rberUs
LOCKPICKING NOOB
LUCKY_NOOB
Customize Sidebar...

Website Feedback

Closed Threads



Active: 6155 users

Brood War web app to calculate unit interactions

Forum Index > BW General
Post a Reply
1 2 3 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 States4342 Posts
May 10 2024 20:03 GMT
#2
This is awesome. Thank you!
So wait? I'm bad? =(
prosatan
Profile Joined September 2009
Romania9252 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
428 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
Romania9252 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
Bulgaria1565 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
France3546 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
Netherlands5889 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 awesome32281 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
319 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
Bulgaria1565 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
53 Posts
May 16 2024 19:20 GMT
#20
Really nice job! Thank you!
1 2 3 Next All
Please log in or register to reply.
Live Events Refresh
Next event in 12h 31m
[ Submit Event ]
Live Streams
Refresh
StarCraft 2
RotterdaM 784
StarCraft: Brood War
Britney 13405
Shuttle 1245
Artosis 777
Dewaltoss 91
Dota 2
LuMiX1
League of Legends
Doublelift6098
JimRising 340
Counter-Strike
Fnx 803
Super Smash Bros
C9.Mang0406
hungrybox230
Mew2King174
Chillindude19
Heroes of the Storm
Liquid`Hasu431
Other Games
summit1g11804
Liquid`RaSZi2586
B2W.Neo991
Tasteless522
Livibee183
XaKoH 111
Organizations
Other Games
gamesdonequick2379
StarCraft 2
StarCraft2168
Heroes of the Storm
Heroes of the Storm683
StarCraft: Brood War
Afreeca ASL 535
[ Show 15 non-featured ]
StarCraft 2
• Berry_CruncH329
• Hupsaiya 79
• AfreecaTV YouTube
• intothetv
• Kozan
• IndyKCrew
• Migwel
StarCraft: Brood War
• EnkiAlexander 71
• Azhi_Dahaki37
• BSLYoutube
• STPLYoutube
• ZZZeroYoutube
Dota 2
• C_a_k_e 2635
• masondota21814
Other Games
• Shiphtur221
Upcoming Events
Afreeca Starleague
12h 31m
Light vs JyJ
Soulkey vs hero
WardiTV Weekly
13h 31m
Monday Night Weeklies
18h 31m
Afreeca Starleague
1d 12h
Snow vs Shinee
Shine vs EffOrt
GSL
1d 13h
PiGosaur Cup
2 days
The PondCast
2 days
Kung Fu Cup
2 days
Replay Cast
3 days
KCM Race Survival
3 days
[ Show More ]
IntoTheTV X SOOP
3 days
Replay Cast
4 days
IntoTheTV X SOOP
4 days
Replay Cast
5 days
GSL
5 days
Replay Cast
6 days
GSL
6 days
Shopify Rebellion Sundays
6 days
Spirit vs Mixu
Liquipedia Results

Completed

Acropolis #5 - TRS
PiG Sty Festival 8.0
Big Dog Cup 2026 Div 1

Ongoing

KCM Race Survival 2026 Season 3
K-JUNGMAN
ASL Season 22
Super Anchor Qualifying S3
CSL 2026 AUTUMN (S22)
Acropolis #5
Blizzard Classic Cup 2026
Calamity Invitational
FISSURE Playground #3
BLAST Open Fall 2026
Esports World Cup 2026
BLAST Bounty Summer 2026
BLAST Bounty Summer Qual
Stake Ranked Episode 3
XSE Pro League 2026

Upcoming

Acropolis #5 - GSA
Acropolis #5 - GSB
Acropolis #5 - GSC
SC4ALL II: Brood War
HSC XXX
Stellar Fest 2: Lunar Cup
SC4ALL II: StarCraft II
Kung Fu Cup 2026 Grand Finals
RSL Offline Finals
PGL Major Singapore 2026
Stake Ranked Episode 6
BLAST Rivals Fall 2026
IEM Beijing 2026
Stake Ranked Episode 5
PGL Masters Bucharest 2026
1win Private Club #2
Thunderpick World Champ. '26
ESL Pro League Season 24
Stake Ranked Episode 4
1win Private Club #1
Logitech G Play Connect 2026
SL StarSeries Fall 2026
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 © 2026 TLnet. All Rights Reserved.