LiftPace

LiftPace

Free fitness and training calculators that run entirely in your browser.

LiftPace is a free suite of 10 fitness and training calculators — TDEE & BMR, macros, body fat, one-rep max, running pace, race-time prediction, calories burned, ideal weight, water intake and heart-rate zones. Every tool runs entirely in your browser, shows the exact formula it uses, and stores nothing. No sign-up, no app, no tracking of your numbers.

Popular calculators

TDEE & BMR Calculator

Estimate your basal metabolic rate and total daily energy expenditure.

Macro Calculator

Split your daily calories into protein, carbs and fat by goal.

Body Fat Calculator (US Navy)

Estimate body-fat percentage from tape measurements.

Ideal Body Weight Calculator

See your ideal-weight range from height using three classic formulas.

One-Rep Max (1RM) Calculator

Estimate your 1RM and get a full percentage-of-1RM rep table.

Running Pace Calculator

Turn distance and time into pace per mile and per kilometre.

See all 10 calculators →

Reference tables

Activity multipliers

Sedentary to extra active (×1.2 → ×1.9) for TDEE.

MET values

Energy cost of 28 common activities.

% of 1RM rep table

How many reps at each percentage of your max.

Heart-rate zones

The five training zones and what they're for.

Browse all reference tables →

Guides

US Navy body-fat method: how accurate is it?

How the U.S. Navy circumference body-fat formula works, how to measure correctly, how accurate it really is versus DEXA, and when it goes wrong.

2026-06-10
How to set your macros by goal

A practical method for setting protein, carbohydrate and fat targets for cutting, maintaining or bulking — protein first, fat floor, carbs as the remainder.

2026-06-06
Riegel race-time prediction explained

How Pete Riegel's formula predicts your 5K, 10K, half and marathon times from one race, why the exponent is 1.06, and where the prediction goes wrong.

2026-06-02
How 1-rep-max formulas work (Epley vs Brzycki)

What the Epley and Brzycki one-rep-max formulas are, how they differ, a worked example, and how to use an estimated 1RM to choose training weights.

2026-05-28
Mifflin-St Jeor vs Harris-Benedict for BMR

Which BMR equation should you use? A side-by-side comparison of Mifflin-St Jeor and the Harris-Benedict equations, with the formulas, a worked example and the evidence.

2026-05-24
How to calculate your TDEE (and use it)

A step-by-step guide to calculating total daily energy expenditure with the Mifflin-St Jeor equation and an activity multiplier — then using it to cut, maintain or bulk.

2026-05-20

What this site is

LiftPace publishes fast, free, genuinely-working tools in the fitness and training calculators space. Every page is static, loads instantly, and shows the published formula behind it. See our methodology for the references we use.

LiftPace provides general fitness information only — not medical, dietary or training advice for any individual. Consult a qualified professional before starting a new diet or exercise program.