The dollar's reserve status exports inflation to Nigeria. This shows the real number.
Nigeria's naira has lost over 70% against the dollar since 2019 — far more than official inflation figures suggest. The USD reserve premium is a hidden tax on every Nigerian who earns, saves, or sends money in naira.
When the US prints money, not all of that inflation stays domestic. Countries holding dollar reserves absorb a portion of it — effectively subsidizing US monetary policy with their own purchasing power.
Nigeria holds dollar reserves and settles international trade in USD. Every time the Fed expands M2, that premium compounds against the NGN — on top of domestic inflation.
CPI data from World Bank (indicator FP.CPI.TOTL.ZG). US M2 from Federal Reserve FRED (series M2SL). Reserve premium = cumulative M2 growth − cumulative US CPI. Estimate years use IMF World Economic Outlook projections.
Consider a family in Lagos in 2019. The household earns the equivalent of $800 per month in naira — a middle-class income by Nigerian standards, covering rent in Ikeja, school fees, groceries, and modest savings. By 2026, the same job pays more naira nominally, but the purchasing power of that income has been devastated by forces that neither the employer nor the employee controls.
Nigerian naira inflation ran at 11.4% in 2019. It climbed to 13.2% in 2020, 17% in 2021, 19.6% in 2022, and accelerated to over 24% in 2023. The Central Bank of Nigeria also made the decision in 2023 to float the naira more freely — resulting in a sharp devaluation that erased decades of artificially maintained exchange rate value. By 2024, the naira had lost over 70% of its dollar value since 2019.
But devaluation and domestic inflation are only part of the story. Nigeria holds dollar reserves, issues dollar-denominated debt, and prices its most important export — oil — entirely in USD. Every time the Federal Reserve expands US money supply, Nigeria absorbs a portion of that expansion through its dollar-denominated financial system. The reserve premium in this calculator quantifies that compounding effect — the inflation Nigeria imported from US monetary expansion on top of everything generated domestically.
For Nigerians in the diaspora sending money home, for families whose savings are in naira, and for businesses that import goods priced in dollars, the real purchasing power loss from 2019 to 2026 is far larger than official naira CPI alone suggests. This calculator shows that number. It is sobering. It is also the honest baseline for any financial planning involving naira.