CalculateHEALTH · UNITED STATES
United States BMI & TDEE Calorie Calculator
Understand your weight range and estimated daily energy needs.
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in
years
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◇ Your values stay in this browser.
Verified for 2026Methodology 2026.1 · reviewed 2026-08-08 · review by 2026-12-01
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Change age to see how the result responds.
How to use this calculator
- 1Enter your current weight, height, age, mifflin-st jeor sex constant, activity level.
- 2Review the headline estimated daily calories and the supporting figures beside it.
- 3Change one input at a time to compare a cautious and an optimistic scenario.
- 4Use the result for planning, then verify the applicable lender, tax, benefit, school, or medical guidance before acting.
Explore this calculator
What your result means →The headline estimated daily calories is based on the values currently entered above.Key terms explained →Review the assumptions, applicable rules, timing and real-world costs before making a decision.How to use this calculator →Enter your figures, review the live result, compare scenarios, then save or print your estimate.The calculation formula →The calculation follows the standard relationship between the displayed inputs. Results update whenever an input changes.Worked example →Using the current values produces 2,605 kcal.Assumptions and limitations →Review the assumptions, applicable rules, timing and real-world costs before making a decision.Costs or factors not included →Review the assumptions, applicable rules, timing and real-world costs before making a decision.Frequently asked questions →How accurate is this estimate? What should I check before relying on it? Can I save or share the result?
Compare the numbers that matter
01
BMI
25.8
02 · KEY VIEW
Basal metabolism
1681 kcal
03
Maintenance calories
2605 kcal
04
Calorie range
2105–3105 kcal
Plain-English guidance
Everything needed to review the estimate before making a decision.
Method, assumptions and worked result
This planning experience updates the result from the values above. The current scenario produces 2,605 kcal. It is designed to make the relationship between inputs visible—not to replace an official quote, benefit statement, tax return, clinical assessment, or lender decision.
What to verify
This screening estimate is not medical advice and is not designed for children or pregnancy.
The formula, edge cases, official sources, and review date remain part of the publication checklist for this US-localized calculator.
Frequently asked questions
What does the estimated daily calories show?+
It is a planning estimate based on the values currently entered. Supporting cards help show the components or trade-offs behind it.
Can I change the assumptions?+
Yes. Edit any input, then compare the revised result with the starting scenario.
Is this an official quote or determination?+
No. Confirm current requirements and your individual circumstances with the relevant official source or qualified professional.
Can I save this scenario?+
Yes. Use Save at the top of the page to keep the current inputs in this browser, or share and print the page.
Official references
Rules and thresholds used by this calculator are labelled for 2026 or formula-labelled period. Review the primary guidance before making a filing, borrowing, benefit or investment decision.
Last source review: 3 August 2026. Calculator results are estimates and may exclude circumstances described in the methodology.
Official-source readyDesigned for IRS, SSA, CFPB, CDC and other primary references.
Privacy firstInputs remain on your device unless you choose to share.
Mockup statusVisual and interaction concept—formula validation still required.