Inflation Calculator
Future amount and purchasing power under an inflation rate.
How it works
Future amount = amount × (1 + r)ⁿ; purchasing power = amount ÷ (1 + r)ⁿ
Inflation erodes value: at 3%/yr, today’s 100 needs ~134 in 10 years; conversely 100 today is worth ~74 in 10 years.
FAQ
Inflation vs interest rate?
Real return ≈ nominal rate − inflation. If inflation exceeds your deposit rate, purchasing power actually shrinks.
Worked example
100 today at 3% inflation needs 100 × 1.03¹⁰ ≈ 134.4 in ten years to buy the same basket.
Conversely, 100 in ten years is worth 100 ÷ 1.03¹⁰ ≈ 74.4 today.
Notes and limitations
CPI is an average over a basket; your actual mix (rent, education, healthcare) can make perceived inflation quite different. For long-term planning, estimate with your own basket.