Is it medical advice?

No. For weight changes, medical conditions, pregnancy or under-18s, talk to a doctor or registered dietitian.

This tool processes your input in your browser, and Alona Tool does not store it on a server. See the Privacy Policy for details on browser storage and third-party services used elsewhere on the site.

Calorie Calculator

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Estimate daily calories from age, sex, height, weight and activity level, with a gentle gain or loss target.

Browser-based: this tool works on your device and does not send your input to an Alona Tool server. See the Privacy Policy for details.

Fast Processing

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Example Usage & Test Cases

Maintenance estimate

Input Scenario:

Male, 30, 70 kg, 170 cm, moderate activity

Generated Result:

BMR, maintenance calories and a daily target in kcal

How It Works

Enter your age, sex, weight and height.

Choose your activity level and goal.

Read your BMR, maintenance and target calories.

Frequently Asked Questions

It is a population-based estimate. Real needs vary with body composition, health and other factors.

Good to Know

Common uses

A rough starting estimate of daily energy needs

Limitations and notes

Equation-based estimates vary between people. This is not medical or dietary advice.

Results are general estimates and are not professional financial, tax, legal or medical advice. See the Disclaimer.

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