Smart Calculators

Calorie Calculator – Daily Calorie Intake to Maintain Weight

A calorie calculator estimates how many calories you need per day to maintain your weight. It uses your BMR (from weight, height, age, sex) and an activity factor. This article explains the method and links to our calorie calculator.

Quick Answer

LabelValue
Profile70 kg, 170 cm, 30, male
ActivityModerate (1.55)
Calories/day2,507

How It Works

We use the Mifflin–St Jeor equation for BMR, then multiply by an activity factor (1.2 sedentary, 1.375 light, 1.55 moderate, 1.725 active, 1.9 very active). Result is estimated calories to maintain weight. To lose weight, consume less; to gain, consume more.

Additional Notes

This is an estimate. Actual needs vary. Use our BMR Calculator to see base metabolic rate first.

Use Our Calculator

Try our Calorie Calculator for your own numbers: /calculators/calorie-calculator

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Frequently asked questions
  • Enter your stats and activity level in our calorie calculator. Result is an estimate for maintenance.

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