Forward Premium Calculator

Calculate how much a forward exchange rate sits above or below the spot rate. This page also keeps the formula, examples, FAQs, and references close by so you can check the result with confidence.

What This Forward Premium Calculator Helps You Do

Forward premium is the percentage difference between the forward rate and the spot rate. Review the formula and examples below if you want to see how the result is derived.

This page is meant to give you a fast answer, but it also helps you double-check the math before you make a decision. Start with the inputs that you already know, run the calculation, and then compare the output with the formula, examples, and FAQs below so you can see whether the answer fits the situation you are modeling.

If the result looks off, the usual causes are a unit mismatch, a missing decimal, the wrong scenario, or a value that needs to be entered as a rate instead of a total. The notes on this page are designed to make those checks easy without forcing you to leave the calculator and search for context elsewhere.

  • Use the calculator first for a quick estimate.
  • Use the formula to understand how the result is built.
  • Use the examples to compare common use cases.
  • Use the references when the answer depends on a standard or assumption.

Common Checks

A quick result is useful, but the best result is one that still makes sense when you look at it a second time. If you are comparing scenarios, try changing one input at a time so you can see which variable has the biggest impact on the final answer. That makes it much easier to spot whether the calculation matches your expectations.

It also helps to keep the context of the problem in mind. A calculator can tell you the math, but you still need to decide whether the input represents a total, a rate, an average, or a category-specific assumption. When in doubt, start with a simple example from the page and scale up from there.

  • Check that every unit matches the rest of the problem.
  • Keep rates, totals, and averages separate.
  • Adjust one variable at a time when testing scenarios.
  • Use the smallest realistic input first, then scale upward.

Scenario Planning

This calculator is especially useful when you want a quick answer before you commit time, money, or effort. Try one baseline input set, then change a single number and compare the result so you can see how sensitive the answer is to that variable.

That makes the page useful for more than just arithmetic. It becomes a small decision aid that helps you compare options, test assumptions, and explain the final number with confidence when you need to share it with someone else.

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Result

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Quick Answer: Forward premium is the percentage difference between the forward rate and the spot rate. Review the formula and examples below if you want to see how the result is derived.

How to Calculate Forward Premium Calculator

  1. Enter the spot rate: Use the current exchange rate.
  2. Enter the forward rate: Use the contract rate for the future date.
  3. Review the premium: The result shows whether the forward rate trades at a premium or discount.

Forward Premium Calculator Formula

Forward premium = (forward rate - spot rate) / spot rate x 100.
Variable Meaning Unit
Spot rate Current exchange rate
Forward rate Exchange rate locked in for the future
Days to delivery Time until the forward contract settles days

Worked Examples

USA - Small premium
  • Spot rate: 1.08
  • Forward rate: 1.10
  • Days to delivery: 180

Result: 1.85%

The forward rate is slightly above spot.

UK - Forward discount
  • Spot rate: 1.25
  • Forward rate: 1.22
  • Days to delivery: 90

Result: -2.4%

A negative result means the forward trades at a discount.

EU - Larger premium
  • Spot rate: 0.90
  • Forward rate: 0.96
  • Days to delivery: 365

Result: 6.67%

A larger spread produces a bigger premium percentage.

How to Interpret Your Results

Range Meaning Action
Negative premium The forward trades at a discount Check whether the currencies have different interest-rate expectations.
Small premium The forward is close to spot Confirm the contract horizon and rate quote.
Large premium The forward price is materially above spot Review whether the quote is annualized or contract-specific.

Frequently Asked Questions

It is the percentage difference between the forward rate and the spot rate.

Yes. A negative result means the forward rate is below the spot rate.

Yes. You can annualize the premium to compare contracts with different maturities.
Planning note: Foreign exchange rates can move quickly. Use the result as a planning estimate, not a trading signal.

References

Last reviewed: March 2026