Health & Fitness

My Calorie Requirement

My Calorie Requirement: calculation method, required inputs, worked check, limitations and a link to Calorie Calculator. Reviewed 25 September 2026.

By Uddhav Gopani, FounderPublished 25 September 2026Reviewed 25 September 2026

For “My Calorie Requirement”, the linked Calorie Calculator is relevant because Estimate a daily calorie target for losing, maintaining, or gaining weight.

What this specific question is asking

Most wrong answers here are setup errors, not math errors. Confirm weight (kg), height (cm), age (years), sex, activity level and goal — units, periods and definitions — before you touch Calorie Calculator, and keep the output's unit attached when you use it.

A fast validation: take the worked example (As a worked reference for “My Calorie Requirement”, Worked example…), swap in your own weight (kg), and confirm the result shifts in the direction the relationship predicts. If it moves the wrong way, recheck the units before the math.

Inputs to verify

Verify weight (kg) before calculation; if this value uses a different unit, period or definition, convert or restate it first.
Verify height (cm) before calculation; if this value uses a different unit, period or definition, convert or restate it first.
Verify age (years) before calculation; if this value uses a different unit, period or definition, convert or restate it first.
Verify sex before calculation; if this value uses a different unit, period or definition, convert or restate it first.
Verify activity level before calculation; if this value uses a different unit, period or definition, convert or restate it first.
Verify goal before calculation; if this value uses a different unit, period or definition, convert or restate it first.

Step-by-step check

Enter your weight, height, and age first.
Pick your sex and activity level.
Choose whether you want to lose, maintain, or gain.
Press Calculate to see your daily calorie target.

Worked example and sanity check

As a worked reference for “My Calorie Requirement”, Worked example Maintenance calories = BMR × an activity factor. With a BMR of 1,500 kcal and a 'lightly active' factor of 1.375, daily maintenance is ≈ 2,063 kcal . A moderate 500 kcal deficit (~1,563 kcal) is often used as a starting point for gradual change. Individual needs vary widely — treat this as a rough guide and consult a qualified professional for a personalised plan.

Interpreting the result

The output is only useful against a reference. The example's BMR × an activity factor gives that reference: your own result should be explainable against it — larger or smaller for a reason you can name. Treat the number as a screening estimate for orientation, not a diagnosis or a personalised prescription; individual measurement error and physiology dominate any formula's precision.

Reviewed 25 September 2026

Verify any current tax threshold, lender rate, provider rule or health guidance with the authoritative source before acting.

Use the Calorie Calculator

Open Calorie Calculator

Common questions

Which inputs matter most for my calorie requirement?

The key inputs are Weight (kg), Height (cm), Age (years), Sex. Match their units and periods before using Calorie Calculator.

How can I check an answer for my calorie requirement?

Run the example exactly as written, then vary weight (kg) alone. A result that tracks that change predictably tells you the setup — units, periods, definitions — is correct.

When should I recalculate my calorie requirement?

Recalculate whenever any input's basis changes: a new measurement, a revised rate or threshold, a different period convention, or an updated policy figure.