Business and Financial Tools
Inflation and Future Money Value Calculator
Compare a future equivalent price with the purchasing power of unchanged cash under a constant inflation assumption.
Private scenario calculator
Inflation and Purchasing Power Calculator
Change any assumption to recalculate instantly. Values stay in this browser and are not saved.
Purchasing-power result
Quick answer
How much purchasing power does inflation remove?
If prices rise with inflation, future cost equals today's amount multiplied by (1+inflation)^years. The purchasing power of unchanged cash equals today's amount divided by the same factor.
How to use this tool
- Enter an amount stated in today's money.
- Set an annual inflation assumption and period.
- Read both the future equivalent cost and remaining purchasing power.
How the calculation works
The tool uses annual compounding: future cost = amount × (1+i)^t and purchasing power = amount ÷ (1+i)^t. The rate and period come from the user. It neither retrieves historical CPI nor forecasts inflation.
Examples
| Example | Input | Expected result |
|---|---|---|
| Ten-percent inflation for one year | |
Equivalent goods cost THB 110,000 and THB 100,000 has purchasing power of about THB 90,909.09 |
| No inflation | |
Future cost and purchasing power remain THB 50,000 under the assumption |
Limitations
- Uses constant assumed inflation, not historical CPI.
- Does not represent personal baskets, regions, or specific product categories.
- It is not an economic forecast or investment advice.
Frequently asked questions
Is the entered rate actual CPI?
No. It is a constant assumption; the tool does not retrieve monthly CPI or calculate historical inflation.
Why are price increase and purchasing-power loss different?
They use different bases: future price multiplies by the inflation factor, while purchasing power divides by it.
Does this apply to every expense?
It is a broad estimate. Housing, education, healthcare, or a personal basket can change differently from headline inflation.
References
- Bank of Thailand — Inflation FAQ Verified 2026-08-03
- Stock Exchange of Thailand — Real interest and inflation Verified 2026-08-03
Content and calculation method last reviewed: