Sports & Fitness

Estimate your one rep max from any weight and rep count. See training percentages for all rep ranges.

Calculate running pace from distance and time, or finish time from distance and pace. Preset distances for 5K to marathon.

Calculate training heart rate zones using max HR or Karvonen method. See optimal zones for fat burn and performance.

Calculate marathon splits and pacing strategy. See pace per mile and key checkpoint times.

Calculate your USGA handicap index from recent rounds using course rating and slope.

Calculate batting average, on-base percentage, and OBP from at-bats, hits, and walks.

Calculate calories burned from step count based on weight, height, and walking pace.

Calculate calories burned swimming by stroke, intensity, and duration using MET values.

Calculate calories burned cycling by speed, duration, and body weight using MET values.

Estimate hiking time from distance and elevation gain using Naismith's rule. See difficulty rating.

Calculate recommended DIN setting based on height, weight, age, and skiing ability.

Get recommended line weight, type, and hook size for your target fish species and method.

Calculate NFL passer rating from completions, yards, touchdowns, and interceptions.

Calculate fantasy football points in PPR scoring from passing, rushing, and receiving stats.

Calculate earned run average from earned runs and innings pitched.

Calculate basketball true shooting percentage from points, FGA, and FTA.

Convert running pace (min/mile) to speed (mph) and see race finish times.

Estimate VO2 max from Cooper test, 1.5 mile run, or Rockport walk test.

Calculate cycling FTP and power zones from a 20-minute power test.

Estimate triathlon finish time from swim, bike, and run splits for sprint to Ironman distances.

Calculate new Elo rating after a chess or game match. See expected score and upset probability.

Calculate pot odds vs hand odds to make optimal call/fold decisions.

Convert between American, decimal, and fractional odds. See implied probability and payout.

Calculate calories burned per step from weight with daily step goal targets.

Calculate max HR using standard and Tanaka formulas with training zones.

Calculate calories burned running from distance, weight, and pace.

Calculate total training volume (sets × reps × weight) and tonnage.

Calculate total swim distance from laps and pool length in yards, meters, and miles.

Compare calories burned across 10 exercises at your weight and duration.