Finance & Property · Introduction
Inflation & Purchasing Power
Estimate future purchasing power, the amount needed to preserve it and cumulative loss.
Updated 2026-10-25 · ThinkVault Tools
What can this tool help you do?
Estimate future purchasing power, the amount needed to preserve it and cumulative loss.
Check the purpose and assumptions, then open the tool. Return to the guide for details.
Purpose and inputs
Purpose and inputs
Estimate future purchasing power, the amount needed to preserve it and cumulative loss.
Method and assumptions
Future equivalent = amount×(1+inflation)^years; purchasing power = amount/(1+inflation)^years. Loss = (1−1/(1+inflation)^years)×100%. Deflation may produce a negative loss. This is a constant-rate illustration, not an inflation forecast.
Method
Future equivalent = amount×(1+inflation)^years; purchasing power = amount/(1+inflation)^years. Loss = (1−1/(1+inflation)^years)×100%. Deflation may produce a negative loss. This is a constant-rate illustration, not an inflation forecast.
Before you begin
Tax, lending, holiday and protection rules vary by place and date. Check current local rules and provider terms. Results are estimates.