ACTIVITY AND TRAINING ESTIMATES

Fitness & Sports Calculators

Compare activity-energy, walking, strength, and target-heart-rate scenarios with visible methods and safety limits.

Choose a calculator

Open a tool and adjust its assumptions for your situation.

4 tools

Activity energy

General and walking-specific MET estimates.

Calories Burned CalculatorEstimate activity calories from body weight, duration, and a selected MET value.Walking Calories CalculatorEstimate walking calories using weight, time, and a walking-intensity MET.

Training references

Strength and heart-rate planning estimates.

One Rep Max CalculatorEstimate a one-repetition maximum from a submaximal set.Heart Rate Zone CalculatorEstimate an adult target range from age and selected percentages.

Before you use these estimates

Fitness results are broad educational estimates, not diagnoses, nutrition prescriptions, medical clearance, or a substitute for qualified coaching. Stop for concerning symptoms and seek appropriate care.