CalculatorsFX-adjusted return
FX-adjusted return calculator
A return earned in naira, measured in US dollars: what the exchange rate added or took away.
CBN official rate, naira per US dollarLoading the latest published figures…
Over the period: 20 for 20%
Naira per US$
Naira per US$
Return in US dollars35.3383%The naira return, measured in dollars
- Naira against the dollarPositive when the naira strengthened
- 12.7820%
Arithmetic on the figures entered. Not investment advice.
How it is calculated
return in dollars = (1 + naira return) × rate at the start ÷ rate at the end − 1Rates are naira per US dollar, as the CBN quotes them. A higher rate at the end means a weaker naira, which cuts the return in dollars: 20% in naira while the rate goes from ₦1,000 to ₦1,500 is −20% in dollars.
The same arithmetic works for any pair of currencies when the rates are units of the return's currency per unit of the measuring one.