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Health & fitness

Muscle gain calorie calculator

Calculate a daily calorie target above maintenance.

Your result

Complete the fields and calculate.

Calculation method and formula

Maintenance calories [kcal/day] × (1 + Target surplus [%] ÷ 100)

Understand the inputs

Maintenance calories
Unit: kcal/Tag. Use a measured value or your own assumption.
Target surplus
Unit: %. Use a measured value or your own assumption.

Assumptions and limitations

The selected factor or percentage is a calculation assumption, not a personal nutrition prescription. Health, training and circumstances can require different targets.

The formula uses the specified units. Displayed numbers are rounded; whole packs, item counts and full time periods may also be rounded within the calculation.

Worked example

Illustrative values. Replace them with your own inputs for your calculation.

Maintenance calories
2400 kcal/day
Target surplus
10 %
Example result2,640 kcal/day

Daily surplus: 240 kcal.

Model revision: October 17, 2026 · How CleverCalc works

FAQ

Frequently asked questions

How does Muscle gain calorie calculator work?+

Maintenance calories [kcal/day] × (1 + Target surplus [%] ÷ 100). The selected factor or percentage is a calculation assumption, not a personal nutrition prescription. Health, training and circumstances can require different targets.

What assumptions should I consider for this result?+

The selected factor or percentage is a calculation assumption, not a personal nutrition prescription. Health, training and circumstances can require different targets. The formula uses the specified units. Displayed numbers are rounded; whole packs, item counts and full time periods may also be rounded within the calculation.

How accurate is the result?+

The formula uses the specified units. Displayed numbers are rounded; whole packs, item counts and full time periods may also be rounded within the calculation. Health values are general information, not a diagnosis or personal treatment recommendation.

Is this calculator free?+

Yes. Calculations and PDF export work without an account or registration.

What happens to my inputs?+

Calculations run in your browser. Results are saved locally only when you add them to My results; favourites and history are also local. Shared links contain your values. The currency tool requests the selected currencies from its rate provider without sending your amount.

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