Weight Loss Calorie Calculator

Fewer than your body burns, by about 250 to 750 calories a day depending on how fast you want to go. The calculator finds your number from your age, height, weight, steps and workouts.

It uses the Mifflin-St Jeor formula for what your body burns at rest, then adds your daily life, your steps and your workouts. After that it takes a gentle cut off the total and warns you if a goal would mean eating too little.

You see three paces, gentle, steady and faster, each with the date you could reach your goal. Steady, about 1 lb (0.5 kg) a week, suits most people. It is an estimate, and real life moves the date.

Yes. Walking 10,000 steps a day burns far more than 3,000, so a calculator that ignores steps hands you a number that fits someone else’s day.

It is an estimate for healthy adults, not medical advice. If you are pregnant or breastfeeding, have a medical condition, take medication, or have a history of disordered eating, please talk to your doctor first.