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Calorie Needs Calculator — Daily Energy Estimates
Estimate adult resting energy, maintenance calories and a daily planning target.
Open full calculator ↗Free to use. No account needed to calculate.
How to use it
- Use the calculator above and replace the example numbers with your own.
- Check the units and choices beside each input. Your result updates as you type.
- Review the breakdown, then share a copy or carry the answer into another calculator.
How the calculation works
The Mifflin–St Jeor equation estimates resting energy from weight, height, age and the selected equation coefficient. Multiply by the activity factor, then apply the selected calorie adjustment.
A worked example
These are illustrative inputs, not recommendations. The result is calculated with the same engine used by the tool.
- Who is this estimate for?
- Adult 18+ · not pregnant or breastfeeding
- Body measurements
- US · pounds and inches
- Age (years)
- 30
- Equation coefficient
- Female coefficient
- Weight (lb or kg, per units above)
- 160
- Height (total inches or cm)
- 68
- Typical activity (including exercise)
- Mostly seated · ×1.2
- Planning goal
- Maintain · no adjustment
Questions about Calorie Needs Calculator — Daily Energy Estimates
What does this calculator do?
Estimate adult resting energy, maintenance calories and a daily planning target.
Can I calculate without an account?
Yes. Calculate for free without signing in. Sign in only if you want to save calculations and personal plans.
What to keep in mind
This is an adult planning estimate, not a prescription. Activity already includes exercise; workout calories are not added twice. People under 18, pregnant or breastfeeding, or needing individualized nutrition care should use an appropriate clinician-provided target.
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Guide updated November 5, 2026 · About Calcuvero & your privacy