Sports & Fitness

Free Stolen Base Percentage (SB%) and Weighted Stolen Base Runs (wSB) calculator. Compute SBR, break-even threshold, and FanGraphs wSB using real seasonal constants for 2015–2025.

Free Batting Average (BA) calculator for baseball and softball. Compute BA, OBP, SLG, OPS, ISO, BABIP, and more with level-specific performance ratings and game log tracking.

Free Bike Size Calculator — find the right bicycle frame size for road, mountain, city, BMX, and kids bikes using your height and inseam measurements.

Free Bowling Average Calculator — compute your bowling average, USBC handicap, skill tier rating, and game-by-game trends from your individual game scores or totals.

Free Cycling Wattage Calculator — compute your power output in watts from speed, weight, and terrain using real physics. Includes FTP, W/kg classification, Zwift categories, and 7 training zones.

Free Earned Run Average (ERA) Calculator for baseball, softball, and Little League — compute pitcher performance, WHIP, ERA+, K/9, and benchmark against MLB, College, High School, and Youth standards.

Free Fielding Percentage (FPCT) calculator for baseball and softball. Calculate FPCT by position and level, compare against MLB averages, and get a detailed performance rating with visual charts.

Free On-Base Percentage (OBP) calculator for baseball and softball. Instantly compute OBP using Hits, At Bats, Walks, Hit By Pitch, and Sacrifice Flies. Includes performance ratings, component breakdown charts, OPS calculation, and MLB benchmark comparisons.

Free True Shooting Percentage (TS%) calculator for basketball — measures overall shooting efficiency by accounting for 2-point field goals, 3-point field goals, and free throws in one advanced metric.