See what today's money will be worth in the future at a chosen average inflation rate.
See what today's money will be worth in the future at a chosen average inflation rate.
Enter values above and click Calculate — results will appear here with the formula explained.
Inflation erodes what a fixed sum can buy. Compounded annually at rate r, prices multiply by (1+r) each year, so after y years something costing $100 today costs $100 × (1+r)ʸ — and your $100 buys only 1/(1+r)ʸ of what it used to.
Because real-world inflation fluctuates, this tool uses a single average rate you choose. That makes it a transparent scenario model rather than a prediction: try 2%, 3% and 5% to see how sensitive long horizons are to the assumption.
Advertisement
AdSense ready — add NEXT_PUBLIC_GOOGLE_ADSENSE_PUBLISHER_ID
Inflation erodes what a fixed sum can buy. Compounded annually at rate r, prices multiply by (1+r) each year, so after y years something costing $100 today costs $100 × (1+r)ʸ — and your $100 buys only 1/(1+r)ʸ of what it used to. Formula: Future cost = Amount × (1 + inflation)ʸ; Future purchasing power = Amount ÷ (1 + inflation)ʸ
Inflation Calculator computes see what today's money will be worth in the future at a chosen average inflation rate. Formula: Future cost = Amount × (1 + inflation)ʸ. Example: At 3% average inflation, a $10,000 expense today would cost about $18,061 in.
See what today's money will be worth in the future at a chosen average inflation rate. Formula: Future cost = Amount × (1 + inflation)ʸ; Future purchasing power = Amount ÷ (1 + inflation)ʸ
| Field | What to enter |
|---|---|
| Amount today ($) | e.g. 10000 |
| Average annual inflation (%) | e.g. 3 |
| Years ahead | e.g. 20 |
All fields use the exact formulas shown below — results include step-by-step breakdowns you can verify by hand.
Inflation erodes what a fixed sum can buy. Compounded annually at rate r, prices multiply by (1+r) each year, so after y years something costing $100 today costs $100 × (1+r)ʸ — and your $100 buys only 1/(1+r)ʸ of what it used to.
Because real-world inflation fluctuates, this tool uses a single average rate you choose. That makes it a transparent scenario model rather than a prediction: try 2%, 3% and 5% to see how sensitive long horizons are to the assumption.
Advertisement
AdSense ready — add NEXT_PUBLIC_GOOGLE_ADSENSE_PUBLISHER_ID
At 3% average inflation, a $10,000 expense today would cost about $18,061 in 20 years, while $10,000 kept under a mattress would buy roughly $5,537 worth of goods.
Advertisement
AdSense ready — add NEXT_PUBLIC_GOOGLE_ADSENSE_PUBLISHER_ID