Hockey Goalie Stats Calculator (SV%, GAA, GSAA)
Save percentage, goals-against average and goals saved above average for an ice hockey goaltender.
Results
What this tool does
Goals-against average looks like the obvious goalie stat, but it mostly measures the team in front: a goalie behind a leaky defence faces more shots and lets in more goals even when stopping a higher share. Save percentage removes the shot count, and goals saved above average turns it into goals, comparing the saves made with what a league-average goalie would have made on the same shots. Recently the NHL save percentage has hovered around .900 to .910, so the gaps between goalies are small fractions; a .920 over a full season is excellent. Only shots on goal count, not missed or blocked ones, and empty-net goals are not charged to the goalie.
Formula
SV% = (SA − GA) ÷ SA · GAA = GA × 60 ÷ minutes · GSAA = saves − SA × league SV%
Variables
| Symbol | Meaning | Unit |
|---|---|---|
sa | Shots on goal faced (SA) | — |
ga | Goals against (GA) | — |
mn | Minutes played | min |
lg | League-average save percentage | — |
SV | Save percentage (SV%) | — |
GA | Goals-against average (GAA) | — |
SS | Saves | — |
GS | Goals saved above average (GSAA) | — |
Worked example
- Shots on goal faced (SA)1800
- Goals against (GA)150
- Minutes played3600 min
- League-average save percentage0.905
- Save percentage (SV%)0.917
- Goals-against average (GAA)2.50
- Saves1650
- Goals saved above average (GSAA)21.0
Limitations
- The calculation runs at full precision and only the display is rounded. If you copy an intermediate value and retype it, small differences can appear.