Baseball
Batting Average Calculator
Baseball batting average (AVG): hits divided by at-bats, shown to three decimals.
Batting average = Hits ÷ At-bats
Also called avg baseball · hitting average
Sports · 10 calculators
Baseball Calculators
Batting average, OBP, slugging, OPS, ERA, WHIP, fielding percentage, strikeout and walk rates.
Baseball
On-Base Percentage Calculator
On-base percentage (OBP): how often a batter reaches base via hits, walks or hit-by-pitch.
OBP = (H + BB + HBP) ÷ (AB + BB + HBP + S…
Also called obp calculator · on base pct
Baseball
Slugging Percentage Calculator
Slugging percentage (SLG): total bases per at-bat, weighting extra-base hits.
SLG = total bases ÷ at-bats
Also called slg calculator · total bases
Baseball
OPS Calculator
On-base plus slugging (OPS) from OBP and SLG, with the performance tier it falls into.
OPS = OBP + SLG
Also called ops baseball · on base plus slugging
Baseball
ERA Calculator
Earned run average (ERA): earned runs allowed per nine innings pitched.
ERA = earned runs ÷ innings pitched × 9
Also called earned run average · era baseball
Baseball
WHIP Calculator
Walks and hits per inning pitched (WHIP) — how many base runners a pitcher allows per inning.
WHIP = (walks + hits) ÷ innings pitched
Also called whip baseball · walks hits per inning
Baseball
Fielding Percentage Calculator
Fielding percentage: successful defensive plays as a share of total chances.
Fielding percentage = Putouts + assists ÷…
Also called fielding pct · defensive percentage
Baseball
Strikeout Rate Calculator
Strikeout rate (K%) for a pitcher or batter as a percentage of plate appearances.
Strikeout rate = Strikeouts ÷ Plate appea…
Also called k rate · k% calculator
Baseball
Walk Rate Calculator
Walk rate (BB%) as a percentage of plate appearances, for batters or pitchers.
Walk rate = Walks ÷ Plate appearances × 1…
Also called bb% calculator · base on balls rate
Baseball
Winning Percentage Calculator
Win percentage from wins, losses and ties, using both the standard and ties-count-half methods.
Win % = (wins + ties ÷ 2) ÷ games played …
Also called win percentage · win loss percentage
Key baseball formulas
| Batting Average | Batting average = Hits ÷ At-bats |
|---|---|
| On-Base Percentage | OBP = (H + BB + HBP) ÷ (AB + BB + HBP + SF) |
| Slugging Percentage | SLG = total bases ÷ at-bats |
| OPS | OPS = OBP + SLG |
| ERA | ERA = earned runs ÷ innings pitched × 9 |
| WHIP | WHIP = (walks + hits) ÷ innings pitched |
| Fielding Percentage | Fielding percentage = Putouts + assists ÷ Total chances (incl. errors) × 100 |
| Strikeout Rate | Strikeout rate = Strikeouts ÷ Plate appearances × 100 |
| Walk Rate | Walk rate = Walks ÷ Plate appearances × 100 |
| Winning Percentage | Win % = (wins + ties ÷ 2) ÷ games played × 100 |