Inflation stops being just a news headline the moment you work out what it has done to your own salary. It takes about two minutes on your phone calculator, and the answer is often more sobering than the headline number.
Explain it like I’m 5
Say last year ₦1,000 could buy you 5 packs of Indomie. Today the same ₦1,000 buys only 4. Your ₦1,000 did not shrink. What it can buy did. An inflation calculator simply answers this question: “how many packs of Indomie can my money buy now, compared to before?” Once you know that, you know how much ground you need to make up.
What an Inflation Calculator Tells You
It turns a percentage like “15.39% inflation” into something personal. It shows how much more you would need to earn today to buy what you could buy a year ago, or how much of your salary’s value has quietly gone. It does not predict the future. It measures how far your money has already fallen behind prices.
Nigeria’s Latest Inflation Number in Context
Nigeria’s headline inflation was 15.39% in August 2026, down a little from 15.43% in July. The Consumer Price Index (CPI), the price scoreboard inflation is worked out from, rose to 146.3 points in August, from 145.2 points in July. That 15.39% is the number we will use in the examples below.
How to Calculate Real Salary After Inflation
There are two easy ways. Use whichever you prefer.
Quick method (a rough estimate): Salary growth (%) minus inflation (%) = your real change (%)
Exact method: Today’s salary ÷ (1 + inflation) = what today’s salary was worth a year ago. For 15.39% inflation, divide by 1.1539.
The quick method is easier and good enough for planning. It slightly overstates the loss, but it points you in the right direction.
Example: What Happens When Prices Rise Faster Than Salary
Say your salary was ₦300,000 a month last August, and it is still ₦300,000 today. Inflation over that time was about 15.39%.
- Salary growth: 0%
- Inflation: 15.39%
- Quick method: 0% − 15.39% = about −15%
- Exact method: ₦300,000 ÷ 1.1539 = about ₦260,000. So your ₦300,000 today buys what only about ₦260,000 bought a year ago.
Now suppose you got a 10% raise, so your salary is ₦330,000:
- Salary growth: 10%
- Inflation: 15.39%
- Quick method: 10% − 15.39% = about −5%
- Exact method: ₦330,000 ÷ 1.1539 = about ₦286,000. That is still below last year’s ₦300,000.
So you got a raise and you are still behind, just by less than before. To keep up fully, your raise would need to be at least 15.39%.
Why Your Personal Inflation May Be Different
The 15.39% is a national average. If a big part of your money goes on food, which had 19.57% inflation in the same month, your own inflation is higher than the headline, and your real gap is wider than this simple calculation shows. For a more accurate picture, give each spending area (food, transport, rent, light) a share based on how much of your budget it really takes.
How Families Can Use This Calculation
Do the calculation with the whole household income, not just one salary. Add up all the income sources and compare their total growth with inflation. This tells you whether the household as a whole is gaining or losing ground, which matters more for your budget than any one person’s raise.
How Salary Earners Can Use It for Negotiations
Go into your salary conversation with your number ready: “My real income has fallen by about X% over the past year, going by NBS inflation data.” That is much stronger than saying “everything is expensive”, and it shows you have done your homework.
Limits of This Calculation
This gives you a useful estimate, not a perfect figure. It assumes you spend roughly like the national average, which you probably do not. It also leaves out one-off expenses, loan repayments, and what your savings or investments earn. Treat the answer as a strong hint, not an official record.
Try the NairaDecoded Inflation Tool
We are building a NairaDecoded inflation and salary calculator, so you will not need to do this by hand every time a new report drops. Until then, the steps above will give you a good estimate in under two minutes. For the latest inflation context, see our August 2026 inflation breakdown and our guide to protecting your salary from inflation.
Want a simple way to see what inflation has done to your money? Join NairaDecoded for practical tools that make money make sense.
Sources
- Nigeria’s headline inflation eases to 15.39% in August — Nairametrics
- Nigeria’s Inflation Rate Falls To 15.39% In August — Channels Television
- Primary data: National Bureau of Statistics (NBS) — CPI & Inflation Reports
This article explains a general calculation method and published economic data. It is not personalised financial advice. See our Disclaimer. Figures are accurate as of the sources’ publication dates and may have changed since.
FAQ
How do I calculate the real value of my salary after inflation?
The quick way is to subtract inflation from your salary growth. A 10% raise during 15.39% inflation gives about −5%, which is a real pay cut even though you got a raise. For a more exact answer, divide today’s salary by 1 plus the inflation rate.
What do I need to use an inflation calculator?
Your salary (or income) now and a year ago, or just your percentage raise, plus the inflation rate for the same period. For a more accurate result, you can also give each spending area a share based on your budget.
Why might my own inflation be different from Nigeria’s headline rate?
The headline rate is a national average. If you spend a lot on things that are rising faster than average, like food, your real increase in cost of living will be higher than the headline figure.
