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Both calculators run independently — change the inputs on either side to compare results.

Purchasing Power Parity Calculator

Calculate the PPP-implied fair-value exchange rate between two currencies using inflation differentials over time. Use it when assessing whether a currency is overvalued or undervalued relative to economic fundamentals.

Baseline Exchange Rate

Domestic Inflation Rate (%)

Foreign Inflation Rate (%)

Time Horizon

Basket Weighting Factor

Fill in the required fields to see your result.

Currency Advanced

Currency Option Premium Calculator

Estimate the theoretical premium of a currency call or put option using the Black-Scholes model. Use it when pricing FX options ahead of hedging or speculative trades.

Current Spot Rate

Strike Price

Time to Expiry (days)

Implied Volatility (%)

Option Type

Fill in the required fields to see your result.

Key differences

	Purchasing Power Parity Calculator	Currency Option Premium Calculator
Category	Currency Advanced	Currency Advanced
Inputs required	5	5
Result	PPP Fair Value Rate	Option Premium ($)
What it does	Calculate the PPP-implied fair-value exchange rate between two currencies using inflation differentials over time. Use it when assessing whether a currency is overvalued or undervalued relative to economic fundamentals.	Estimate the theoretical premium of a currency call or put option using the Black-Scholes model. Use it when pricing FX options ahead of hedging or speculative trades.