How the peso value is figured
Four steps, from the two years you pick to the adjusted amount.
Choose the year your amount is from and the year you want to express it in. You can go forward in time or backward.
from and toThe calculator looks up the consumer price index for each year. The ratio between them is how much the general price level changed.
CPI ratioYour amount is multiplied by that ratio, which keeps its buying power constant. The result is the same purchasing power stated in the other year's pesos.
same valueThe result also shows the total inflation between the years, the average per year, and the reverse conversion.
both directionsQuestions people ask
answered in plain wordsEnter 100, set the from year to 1990 and the to year to the latest, and the calculator shows the equivalent amount today. Prices in the Philippines have risen many times over since 1990, so ₱100 back then had the buying power of several hundred pesos now. The exact figure updates as new yearly averages come in.