About this bmr / resting energy calculator
Estimate adult resting energy using the Mifflin–St Jeor equation. Reuses the nutrition calculator: 10 × weight in kg + 6.25 × height in cm − 5 × age, then +5 for male or −161 for female. Source: Mifflin et al., American Journal of Clinical Nutrition (1990), doi:10.1093/ajcn/51.2.241. Use this workspace to prepare a result you can review before putting it to use. All processing takes place on your device, without an account or an upload of your inputs. Check the examples to understand the expected output, read the limitations for the supported scope, and reset the form when you want to start a separate task.
How it works
Reuses the nutrition calculator: 10 × weight in kg + 6.25 × height in cm − 5 × age, then +5 for male or −161 for female. Source: Mifflin et al., American Journal of Clinical Nutrition (1990), doi:10.1093/ajcn/51.2.241.
Try these examples
Male; 70 kg; 175 cm; age 30
1648.75 kcal/day
Female; 60 kg; 160 cm; age 30
1289 kcal/day
Limitations & privacy
This estimates resting energy, not measured basal metabolism, a calorie target, or total daily needs. Adults only: age 18–100, weight 30–300 kg, height 120–230 cm. Not for pregnancy, lactation or clinical decisions; seek professional guidance.
Inputs and results stay in this browser. Only tool identifiers are stored for your recently used tools. You can clear that history from the directory.
A few good questions
How is the result produced?
Reuses the nutrition calculator: 10 × weight in kg + 6.25 × height in cm − 5 × age, then +5 for male or −161 for female. Source: Mifflin et al., American Journal of Clinical Nutrition (1990), doi:10.1093/ajcn/51.2.241.
Are my inputs sent to a server?
No. Inputs and results are processed locally and are not uploaded or included in telemetry. Copying or downloading is your choice.
What are the limits of this tool?
This estimates resting energy, not measured basal metabolism, a calorie target, or total daily needs. Adults only: age 18–100, weight 30–300 kg, height 120–230 cm. Not for pregnancy, lactation or clinical decisions; seek professional guidance.
Updated September 19, 2026