Twelve simple, accurate calculators for pitching, hitting, youth leagues and the pennant race — built for players, coaches, parents and fans who want fast answers without the math.
Calculate a pitcher's Earned Run Average for a single game or a full season. Supports 9, 7, and 6-inning formats for MLB, softball, college, high school, and youth ball, with a quality rating for every result.
Work the ERA math backwards. Find how many innings a pitcher needs, what ERA they must post, or how many earned runs they can allow to hit a target — perfect for chasing a season goal or a Cy Young pace.
Walks and hits per inning pitched — the stat coaches read alongside ERA to see how many base runners a pitcher really allows. Single-game or full-season, with a quality rating.
Fielding Independent Pitching strips out defense and luck to measure what a pitcher actually controls — home runs, walks, and strikeouts — on the ERA scale. Includes an editable FIP constant.
For youth baseball: enter a pitcher's age and pitches thrown to get the required rest days and next eligible date, plus a live in-game pitch counter. Based on Little League and PitchSmart rules.
See what a pitch really feels like at the plate. Convert speed between 43, 46, 50, 54 and 60 ft 6 in, check reaction time, and find the right pitching machine setting for batting practice.
Turn hits and at-bats into a clean batting average, for a single stretch or a full season, with benchmarks for what counts as good at each level.
Get SLG, total bases and isolated power from hits by type. See where your bases come from, how your next at-bat changes the number, and plan the bases you need to hit a target SLG.
On-base plus slugging in one number. Enter a hitter's line to get OBP, SLG, and OPS together — the quick modern measure of a hitter's total offensive value.
Batting average on balls in play for hitters and pitchers, with a luck check. See expected BABIP, how many hits are above or below normal, and a luck-adjusted batting average.
Find the magic number, elimination number and games back for a division or wild card race. See the ways to clinch, project the clinch date, and check what the chasing team needs.
Enter a birth date to get your child's league age, division and age-group window for baseball or softball. Plan every season ahead, or find the birth dates for any division.
Baseball and softball stats look simple, but the math trips people up — partial innings, different game lengths, earned versus unearned runs, and which plate appearances count as at-bats all change the result. These tools handle the details for you so the number is right the first time.
Every tool here is free, works on your phone, and is built around the same goal: give you an accurate answer in seconds, then explain what it means. For benchmark guides on what counts as a good ERA at every level — from youth ball to college recruiting, Little League and softball — check the blog.
| If you want to know... | Use |
|---|---|
| How many runs a pitcher allows per game | ERA Calculator |
| What ERA a pitcher needs to reach a goal | ERA Target Solver |
| How many runners a pitcher lets on | WHIP Calculator |
| How good a pitcher is without defense and luck | FIP Calculator |
| How much rest a young pitcher needs | Pitch Count Calculator |
| How fast a pitch really feels from a short distance | Pitch Speed Equivalent |
| How often a hitter gets a hit | Batting Average Calculator |
| How much power a hitter has | Slugging Percentage Calculator |
| A hitter's total offensive value | OPS Calculator |
| Whether a hitter or pitcher has been lucky | BABIP Calculator |
| How close a team is to clinching | Magic Number Calculator |
| Which division a child belongs in | Little League Age Calculator |
From quick everyday stats like ERA and batting average to advanced measures like FIP, OPS and BABIP, plus youth-league tools for pitch counts and age groups, this is a complete set of calculators for players, coaches, and parents at every level of the game.