- Maths reviewed by Josh Miller
- Tested by Diana Westfield
112 goals against in 3,480 minutes is a goals against average of 1.93. The CasinoCalcs goals against average calculator above works it out for any goalie, along with save percentage, shots faced per game and how many fewer goals it would take to knock a tenth off the average. It’s a free calculator built for hockey first, with a game-length setting for football and other sports.
How to calculate GAA
The formula scales goals to a full game:
GAA = goals against × 60 ÷ minutes played
So 112 × 60 ÷ 3,480 = 1.93. Minutes matter because goalies rarely play neat full games all season. Pulled in the second period after three goals in 25 minutes? That’s a 7.20 GAA for the night, and the calculator treats it exactly that way.
| Goals against | Minutes | GAA |
|---|---|---|
| 2 | 60 | 2.00 |
| 3 | 65 (overtime) | 2.77 |
| 4 | 30 (pulled) | 8.00 |
| 112 | 3,480 | 1.93 |
Save percentage tells you the other half
A goalie behind a strong defence faces fewer shots, so their GAA can look great without many saves. Save percentage fixes that: saves ÷ shots against. Our goalie faced 1,500 shots and stopped 1,388, a .925 save percentage. Type the shots against and the calculator adds it, plus shots faced per game (25.9 here), which says a lot about the team in front.
Football, hurling and other sports
Change the game length and the same idea works anywhere: goals conceded per 90 minutes for a football keeper, per 70 for Gaelic games. In football, ‘goals conceded per 90’ is the common name. For the scoreboard side of Gaelic games, the GAA score tracker keeps goals and points live, and the NHL draft lottery simulator covers the other end of a hockey season.