Everyday
Calorie Calculator
Estimate daily calorie needs. Change the inputs below and the estimate updates immediately.
Input
Your numbers
Calculated result
Estimated daily calories
2,724 kcal
Estimated resting needs
1,758 kcal
Adult Mifflin–St Jeor estimate using the selected equation.
Estimate only. Verify important decisions with an appropriate professional or official source.
How to use it
A quick estimate, without the spreadsheet.
Inputs and units
Enter adult weight in pounds, height in inches, age, equation constant and an activity multiplier.
Formula
Resting calories = 10 × kg + 6.25 × cm − 5 × age + constant. Use +5 for the male equation or −161 for the female equation. Daily estimate = resting calories × activity.
Worked example
At 80 kg, 180 cm and age 30, the male equation estimates 1,780 resting kcal; × 1.2 gives 2,136 kcal daily.
Assumptions and limitations
Mifflin–St Jeor is an adult estimate. Activity multipliers are rough assumptions. Not intended for children, pregnancy, lactation or medical nutrition planning; individual needs vary.
Equation reference: Mifflin et al., 1990.
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