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Daily Calorie Calculator

Estimate adult basal metabolic rate and daily energy needs using the Mifflin–St Jeor equation and a chosen activity factor.

Free to use Your entries and results stay in this browser. Lucaden does not upload them.

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How it works

Complete the job in three clear steps

  1. Enter adult age, sex, height, weight, and activity level.
  2. Choose the relevant options and create estimated BMR, maintenance calories, and goal ranges.
  3. Review the assumptions and download or copy the result when available.

Important

Check the result before relying on it

Review generated output before using it in production. Formatters and converters can validate structure, but they cannot understand every application-specific rule or guarantee that transformed content has the intended meaning.

Practical details

What this Lucaden tool does

Estimate adult basal metabolic rate and daily energy needs using the Mifflin–St Jeor equation and a chosen activity factor.

This dedicated Lucaden route uses browser APIs and documented open-source foundations. It does not submit your working data to Lucaden.

Included capabilities

  • Mifflin–St Jeor equation
  • Metric and imperial units
  • Activity-factor estimate
  • Gentle goal ranges

Useful for

  • Estimate maintenance energy
  • Compare activity assumptions
  • Prepare a nutrition discussion
  • Set a rough meal-planning baseline

Questions

About this tool

Is this medical or dietary advice?

No. Energy needs vary with health, body composition, pregnancy, medication, training, and measurement error. Consult a qualified clinician or dietitian before a significant diet change.

Why is the result an estimate?

The formula predicts average resting energy expenditure and multiplies it by a broad activity factor; neither step measures your actual metabolism.

Keep going

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Open-source foundations

Built transparently

Lucaden documents its standards sources, architectural references, and permissive runtime dependencies while keeping this workspace consistent with the Lucaden interface.

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