Loona Calculators
Inflation quietly shrinks money. Enter any amount, the yearly inflation rate and a number of years to see two things: what today's goods will cost then, and what today's money will actually be worth.
Use your country's recent long-term average consumer inflation — many countries average 5-8% over long periods, though individual years can be far higher. Trying a higher rate as well gives you a cautious picture.
Prices rise but the notes do not grow. Money must earn at least the inflation rate just to keep its buying power — one reason people invest rather than only save.
They are mirror images: future cost shows prices rising, while purchasing power shows your fixed amount of money shrinking to match.