Market, inflation and real rates calculator

Separate general inflation from the market rate using the multiplicative rate relationship.

j = \frac{i - f}{1 + f}

Calculator

Enter the values you know and leave one box empty. Calculate finds the empty one, the result or any input.

Given

j = \frac{0.09 - 0.03}{1 + 0.03} \approx 0.0583

Symbol	Meaning	Unit
$j$	real discount rate	decimal
$i$	market or nominal discount rate	decimal
$f$	general inflation rate	decimal

Results are estimates for study and screening. Check the inputs, units and assumptions before you use them for design, billing or contract decisions.