Fitness Tools and Calculators

Calculators and interactive tools, from strength standards to treadmill finders. The full list is on the calculators page.

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Popular in Fitness Tools and Calculators

Articles in Fitness Tools and Calculators that readers reach most often from search.

Bodybuilding

Average Butt Size For Women and Men

Bodybuilding

Average Shoulder Width For Men and Women

Tools

How Many People Can Bench 225? U.S. Male Estimates and Limits

Bodybuilding

Average Thigh Circumference in Males and Females

Bodybuilding

Bench Press Averages for 2025: The Latest Data by Age, Weight, Gender, and Experience

Bodybuilding

The Average Calf Size for Men and Women

Muscle

Average Biceps Size: How Do You Measure Up?

Bodybuilding

Average Chest Size For Men & How to Measure Your Chest

Calculators

The most-used FitnessVolt calculators. The calculators page lists every one.

All fitness calculators

Every FitnessVolt calculator in one place: calories, body composition, strength, fasting and running.

Browse the calculators

TDEE Calculator

Find your maintenance calories: how many calories you burn in a day, and what to eat to lose or gain.

Find your TDEE

One Rep Max Calculator

Estimate your 1RM from any set of weight and reps, or switch to RPE mode for more accuracy.

Related calculators RPE calculator RPE chart: reps and RPE to %1RM How strong am I?

Estimate your 1RM

Strength Standards

Beginner to elite standards for over 400 lifts, by bodyweight, age and sex. See where your lifts rank.

Popular standards Bench press standards Squat standards Deadlift standards

Check your level

Latest in Fitness Tools and Calculators

Everything filed under Fitness Tools and Calculators, newest first.

Fitness Calculator

Vertical Jump Calculator: Jump Height, Dunk Reach and Jump Power

Your vertical jump is the height you can rise off the floor: your highest touch on a wall minus your standing reach. To dunk on a…

Tom Miller, CSCS · Oct 10, 2026

Tools

How We Test, Source and Price Treadmills

Where every number on our treadmill tools comes from, what we do not do, and why our price claims wait until the data earns them.

Tom Miller, CSCS · Aug 9, 2026

Tools

Treadmill Maintenance: Lubrication, Belt Slipping and Moving

How to lubricate a treadmill belt, fix a belt that slips, and move a treadmill without damaging it. The three jobs that decide how long a…

Tom Miller, CSCS · Aug 9, 2026

Tools

Treadmill Deals: Prices Tracked Daily

We log treadmill prices every day, so you can see whether a discount is real or just a crossed-out number the machine never sold for.

Tom Miller, CSCS · Aug 9, 2026

Tools

Treadmill Finder: Match a Machine to How You Will Use It

Answer four short questions, three of them optional, and see treadmills that match how you will actually use it. Live listings and current prices.

Tom Miller, CSCS · Jul 27, 2026

Fitness Calculator

Strength Standards – How Strong Are You?

So, you think you’re strong? if you go to the gym and lift weights, you are probably stronger than the average person. But how strong are…

Tom Miller, CSCS · Apr 1, 2026

Fitness Calculator

Fasting Electrolyte Calculator: Daily Reference Intakes

Calculate your sodium, potassium, and magnesium needs during fasting. Essential for extended fasts over 24 hours.