Rule of 72 Calculator
Years to double your money at a given rate of return
Expected annual return%
1%30%
Starting amount (optional)₹
₹10k₹1Cr
Years to double
0
Starting amount
₹0
Value after doubling
₹0
Value after 2 doublings
₹0
Formula
Years to Double ≈ 72 ÷ Annual Return %
This is a quick estimate, not an exact calculation — it gets slightly less accurate at very high or very low rates. For rates between roughly 6% and 15%, it's typically accurate to within a few months. Read more in our Rule of 72 article.