ToolHuts

Practical tools for measured work

Resting energy and maintenance estimate

Calculate Mifflin resting energy and a maintenance scenario using an explicitly entered activity multiplier.

kg
cm
Check the entered values. One or more inputs are outside the range this tool can calculate.

How it works

Mifflin–St Jeor: 10 × kg + 6.25 × cm − 5 × age, then +5 or −161 according to the published coefficient. The original study covered ages 19–78. Maintenance here is resting energy times your entered multiplier; that multiplier is a separate assumption.

Primary method reference

Before using the result

  • Check the selected mode, units and input values before using the result.
  • Read the assumptions and rounding rules; compare the worked example with your intended calculation.
  • A numerical result does not supply missing context or change the stated limitations.

Limitations

This is not a calorie prescription or weight-loss target. The equation cannot resolve individual metabolic variation, illness, pregnancy, lactation or athletic demands. No activity multiplier is inferred from a vague activity label. A dietitian can assess an appropriate intake and whether this model applies.

Frequently asked questions

What should I verify before using this result?

Check the input values, units, dates and assumptions. Compare the method and its stated limits with the source relevant to your task.

Why might the finished result differ?

Results depend on the entered data and the model’s assumptions. Rounding, changing conditions or omitted factors can affect the comparison. Read the limitations before using the result.