Calorie Calculator: Daily Energy Needs (Mifflin-St Jeor)
How many calories does your body use each day? This calculator estimates your resting and daily energy needs using the Mifflin-St Jeor equation, one of the most widely used formulas.
Open the free Daily Calorie Needs Calculator →What is the Daily Calorie Needs Calculator?
Estimate your resting and daily energy needs (Mifflin-St Jeor equation). It's completely free, needs no sign-up and works on any phone or computer.
Why it's helpful
- Estimates resting energy (BMR) and daily needs by activity level
- Metric and imperial units
- A sensible starting point for healthy eating plans
Who it's for
Adults interested in a general estimate of energy needs.
How to use it
- Enter your details and pick how active you are.
💻 Open source: this tool is free and open source (MIT License). View the code on GitHub, download it and run it offline.
The bigger picture: Calculators
Everyday decisions in the UAE, from loans and rent to gratuity, fuel and bills, come down to a few numbers. Quick, reliable calculators help you check offers, plan ahead and avoid costly surprises, without spreadsheets or sign-ups.
What's changing: Living costs in the UAE change month to month, from petrol prices to rents, which is why calculators that load current figures automatically are becoming more useful than static ones.
Frequently asked questions
How accurate is it?
Mifflin-St Jeor is usually within about 10% for most people.
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