Fitness Calculators Comparison

Compare Fitness calculators side by side. Free fitness calculators for running pace, one-rep max, heart-rate zones, calories burned and workout planning.

Fitness Calculators

Running Pace & Split Times

Target pace → finish time + per-km splits (or solve required pace)

Race Time Predictor

Predict race times for different distances

Steps to Distance Calculator

Convert steps to distance and calories

Max Heart Rate Calculator

Calculate max heart rate from formulas

Heart Rate Recovery

Evaluate heart rate recovery

VO2 Max Estimator

Estimate VO2 max from fitness test

Exercise Calorie Burn

Estimate calories burned during exercise

Body Fat % from BMI

Estimate body fat percentage from BMI (Deurenberg formula)

Pull-Up Test Standards

Evaluate pull-up performance

Sit & Reach Test

Evaluate flexibility from sit-and-reach

Sports Calorie Calculator

Calculate calories burned playing sports

Calories Burned at Rest (BMR)

Calculate resting calorie burn

One-Rep Max Calculator

Estimate your one-rep max (1RM)

Training Max Calculator

Calculate training max percentages

Weight Loss Pace Calculator

Calculate how long to reach goal weight

Muscle Gain Calculator

Estimate muscle growth potential

Push-Up Test Standards

Evaluate push-up performance by age

Squat Standards by Body Weight

Compare squat to strength standards

Bench Press Standards

Compare bench to strength standards

Deadlift Standards by Weight

Compare deadlift to strength standards

Overhead Press Standards

Compare OHP to strength standards

Plank Hold Standards

Evaluate plank hold time by age

Grip Strength Standards

Evaluate grip strength by age/gender

Burpee Test Calculator

Estimate fitness from burpee count

Sit-Up Test Calculator

Abdominal endurance from sit-ups

Rowing Standards

Compare 500m row split times

Swim Pace Calculator

Swimming pace per 100m

Cycling Speed & Time

Time to cycle a distance at speed

Cycling Cadence Calculator

Speed from cadence and gear

Stride Length Calculator

Stride length from height

Weekly Training Volume

Weekly lifting volume and tonnage

Vertical Jump Power

Power output from vertical jump

Beep Test (VO2 Max) Estimator

Estimate VO2 max from beep test level

Bodyweight Strength Ratio

Lift-to-bodyweight strength ratios

Deload Week Planner

Deload volume based on training age

Workout Rest Timer

Optimal rest between sets

Treadmill Incline Pace Calculator

Flat-pace equivalent of an incline run

Rowing Split Calculator

Pace per 500 m and power output

Sweat Rate Calculator

Fluid loss per hour from pre/post exercise weights

Training Load Calculator (sRPE)

Session load from rating of perceived exertion × minutes

Beep Test VO₂ Max Estimator

Estimated VO₂ max from the 20 m shuttle run level reached

Resting Metabolic Rate Calculator (Cunningham)

RMR from fat-free mass via the Cunningham equation

About CalcProMaster calculators

CalcProMaster is a free library of 1206 online calculators across 20 categories — finance, health, math, business, construction, engineering, conversion, education and more. Every calculator runs entirely in your browser: no sign-up, no paywall, and no data leaves your device.

What makes these calculators different is transparency. Each tool shows the exact formula it uses and a step-by-step breakdown of how your inputs become the result, so you can verify the math instead of trusting a black box. Result interpretation, common mistakes, assumptions and limitations are documented on every calculator page, alongside worked examples and an FAQ. Health and finance tools cite the standard formulas they follow — Mifflin-St Jeor for calorie needs, standard amortization for loans — and state plainly where a calculator's answer should be confirmed with a professional.

The guides library goes deeper on the calculations people search for most: percentage and discount math, loan EMI and amortization, income-tax brackets, calorie and macro planning, concrete volumes and more — each with the formula, worked examples and links to the matching calculator. The glossary defines the terminology in plain language, and the public formula QA dashboard shows the verification status of every calculator's math.

Popular starting points: loan EMI calculator, BMI calculator, percentage calculator, random number generator, and concrete calculator — or browse a category above to find the tool you need.

↑ ↓ navigate↵ openesc close