Compound Interest Calculator
Grow Your
Wealth Smarter
Not Harder
"Find out how interest builds over time and watch your money multiply."
Calculations are based on standard financial formulas and the data you enter.
Results are for informational purposes only and should not be relied upon as financial advice.
Compound Interest Formula
Compound interest is one of the most powerful forces in personal finance. Whether you’re saving in a TFSA, RRSP, or FHSA, understanding how compound interest works helps you make smarter decisions about your money. Our calculator uses the standard compound interest formula: A = P(1 + r/n)^(nt) + PMT × ((1 + r/n)^(nt) − 1) / (r/n), where P is your principal, r is the annual interest rate, n is the compounding frequency, t is time in years, and PMT is your periodic contribution. Canadian accounts like the TFSA allow tax-free growth, making compound interest even more effective for long-term wealth building.
