Fitness & Sports

Use our Pace Calculator to find running pace, finish time, or distance in min/km or min/mile. Great for 5K, 10K, half marathon, and marathon planning.

Use our Winning Percentage Calculator to find win percentage from wins, losses, and optional ties. Supports standard and tie-aware formulas for sports records.

Use our Calories Burned Calculator to estimate exercise calories from activity, weight, time, and MET value. Supports common workouts and custom MET input.

Use our Heart Rate Zone Calculator to find 5 training zones by % max heart rate or Karvonen HRR. Get personalized target BPM ranges for cardio workouts.

Use our Target Heart Rate Calculator to find workout BPM targets by intensity using % max heart rate or Karvonen heart rate reserve.

Use our Max Heart Rate Calculator to estimate HRmax by age with Fox, Tanaka, Gellish, and Nes formulas. Compare max heart rate estimates in bpm fast.

Use our VO₂ Max Calculator to estimate cardio fitness with the Rockport 1-mile walk test using age, sex, weight, walk time, and post-walk heart rate.

Use our Running Split Calculator to find even pace splits by mile or kilometer from total distance and finish time. Great for race pacing and training plans.

Use our Marathon Pace Calculator to convert marathon finish time to pace per mile, pace per km, and speed, or estimate finish time from your target pace.

Use our Bench Press 1RM Calculator to estimate your one-rep max with Epley, Brzycki, Lombardi, and O’Conner formulas in kg or lb.