Skip to content

Fisher Equation

Result

Calculated result 1.92 Based on the values entered.
↗ Finance

Fisher Equation — free online calculator.

Formula

F = S × (1 + r_domestic) / (1 + r_foreign)
  • Fisher Equation calculates its result from Spot Rate, Domestic Rate, Foreign Rate. It uses the formula F = S × (1 + r_domestic) / (1 + r_foreign). Change any input to recalculate the result instantly.
  • The main inputs are Spot Rate, Domestic Rate, Foreign Rate. Enter them in the units and format shown in the calculator.
  • Use monetary amounts, rates and time periods exactly as labeled; the result reflects the assumptions entered on this page.
  • Changing any input above recalculates the result with the same calculation engine used by this page.

Example: Fisher Equation

Inputs
  • Spot Rate: 1.2
  • Domestic Rate: 3
  • Foreign Rate: 1.5

Using Spot Rate = 1.2, Domestic Rate = 3, Foreign Rate = 1.5, the calculated result is 1.92.

Sample result: Calculating…

Frequently asked questions

What does the Fisher Equation calculate?

Fisher Equation — free online calculator.

Which values should I enter?

Enter Spot Rate, Domestic Rate, Foreign Rate using the units and format shown beside each field.

What formula does this calculator use?

The calculator uses the following relationship: F = S × (1 + r_domestic) / (1 + r_foreign).

Why might my result differ from another source?

Results can differ when another source uses different units, rounding rules, conventions or assumptions. Compare the inputs and definitions before comparing results.

Does the result update automatically?

Yes. Changing an input updates the result using the same calculation engine shown on this page.

Page information

Updated: October 7, 2026