doomath Calculator
Calorie Deficit Calculator
Estimate a daily calorie deficit from maintenance calories and target intake.
InputsChange a value to recalculate instantly
ResultUpdates as you type
How it worksTransparent math
Formula
Deficit=TDEE−IntakeCompares estimated intake with estimated maintenance calories. Actual energy needs and weight changes vary.
Result breakdownSee the important numbers together
1Daily calorie deficit500 kcal
2Weekly energy gap3,500 kcal
3Energy balanceBelow maintenance
λ DooMathWork with this calculation
Local · deterministic · optionalQuick mathNatural-language-style shortcuts for deterministic arithmetic.
Calculator guide
How to use the Calorie Deficit Calculator
Estimate a daily calorie deficit from maintenance calories and target intake.
01Set inputsChoose values, units and assumptions.
02Apply the modelDeficit = TDEE − Intake
03Read the resultCheck the output against the assumptions before using it.
What this calculator does
Estimate a daily calorie deficit from maintenance calories and target intake.
Formula & method
Deficit = TDEE − Intake
Assumptions & notes
Review the inputs, units and assumptions before using the result for a real decision.