Which compounding frequencies are supported?

Yearly, half-yearly, quarterly, and monthly compounding are supported.

What formula do you use?

We use A = P × (1 + r/n)^(n×t), where P is principal, r is annual rate, n is compounding frequency, and t is time in years.

How is compound interest different from simple interest?

Compound interest earns interest on both the principal and accumulated interest, while simple interest earns only on principal.

Compound Interest Calculator • Tulex

📊 Compound Interest Calculator

Estimate the future value of your investment with compounding. Enter principal, rate, tenure, and compounding frequency.

29K+ calculations this month

Power of Compounding

Compound interest means earning interest on your interest. Unlike simple interest where you earn only on principal, compound interest accelerates wealth creation exponentially over time.

Compound Interest Formula

A = P × (1 + r/n)ⁿ

Where: A = Final Amount, P = Principal, r = Annual rate, n = Compounding frequency, t = Time in years

Compounding Frequency Impact

Yearly: Interest calculated once per year (lowest returns)
Half-Yearly: Twice per year (banks often use this for FD)
Quarterly: 4 times per year (common for corporate FDs)
Monthly: 12 times per year (higher effective returns)
Daily: 365 times per year (highest, used by some banks)

Rule of 72

Want to know how long it takes to double your money? Divide 72 by annual return rate.

At 8% return: 72 ÷ 8 = 9 years to double
At 12% return: 72 ÷ 12 = 6 years to double
At 18% return: 72 ÷ 18 = 4 years to double

Investment Examples

?1L invested at 12% for 20 years = ?9.6L (10x growth!)
?5L invested at 10% for 15 years = ?20.9L
Starting 10 years earlier doubles your final corpus