Fitness Calculators

Use free WorkoutHealthy calculators for pace, endurance, strength training, gym planning, food math, and general fitness estimates.

Each tool shows its method and limitations. Health related results are estimates for general information and are not medical advice.

Pace and endurance

Treadmill Pace CalculatorConvert MPH or KPH to pace and finish time.Swim Pace CalculatorFind 100 meter, 100 yard, and 50 meter splits.Grade Adjusted Pace CalculatorEstimate flat equivalent pace for a steady hill.Rowing Pace CalculatorConvert rowing distance and time to split and watts.Run Walk Pace CalculatorBlend run and walk intervals into one average pace.

Fitness estimates

Cooper Test VO2 Max CalculatorEstimate VO2 max from a 12 minute run distance.Stationary Bike Calorie CalculatorEstimate exercise bike calories from MET intensity.Exercise MET CalculatorConvert oxygen uptake to METs and estimated calories.

Gym planning

Home Gym Cost CalculatorAdd equipment, flooring, delivery, storage, and tax.

Body measurements

Body Fat Percentage CalculatorEstimate body fat from height and tape measurements.Waist to Height Ratio CalculatorCalculate waist as a share of height.

Strength training

Bench Press One Rep Max CalculatorCompare three one rep max formulas for bench press.Workout Volume CalculatorTotal sets multiplied by reps multiplied by load.Gym Plate CalculatorFind matching plates per side for a target load.

Food math

Protein Calculator for FoodTotal label protein across foods and servings.

Start with the number you already know

If you know speed, choose a pace calculator. If you know distance and time, use the swim, rowing, or Cooper test tool. Strength calculators start with a completed lift, planned load, or workout log.

Keep units consistent and save the inputs with the result. That makes future comparisons much more useful.

How these tools are built

WorkoutHealthy uses transparent equations, clear units, and published references when a research based method is involved.

No calculator can capture every difference between people, machines, surfaces, and measurement techniques. Treat the answer as a planning estimate unless the page states that it is exact unit conversion.