Training calculators

BMI calculator

Work out your body mass index and what it means for training.

Daily calories (TDEE)

How many calories you burn per day based on activity, using Mifflin-St Jeor.

Calories burned by sport

How many calories each sport burns for your weight and session time.

Running pace calculator

Turn distance and time into pace per km, with 5K-to-marathon projections.

Heart-rate zones

Your 5 training zones with the Karvonen method or the classic age formula.

One-rep max calculator

Estimate your bench, squat or deadlift max without risking it.

Hydration calculator

How much water you need per day for your weight and training.

Personal trainer cost

What a personal trainer costs in the UK in 2026: per session, blocks and monthly.