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Compound Interest Calculator

New

Compound interest calculator — see your money grow with chart

$10,000
$0
8%
10 yrs
$22,196
Final balance
$12,196
Interest earned
$10,000
Total invested
Principal: 45%Interest: 55%
YearBalanceInvestedGain
1$10,830$10,000$830
2$11,729$10,000$1,729
3$12,702$10,000$2,702
4$13,757$10,000$3,757
5$14,898$10,000$4,898
6$16,135$10,000$6,135
7$17,474$10,000$7,474
8$18,925$10,000$8,925
9$20,495$10,000$10,495
10$22,196$10,000$12,196
Browser-based, files never uploaded Instant results Works on any device

How to use Compound Interest Calculator

  1. 1Enter principal amount
  2. 2Set annual interest rate
  3. 3Choose compounding frequency (daily, monthly, annual)
  4. 4Add optional monthly contributions
  5. 5See total with interactive growth chart

About this tool

Calculate compound interest online. Enter principal, rate, time, and compounding frequency. See year-by-year growth chart. Works for savings, investments, and loans.

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Frequently asked questions

What is compound interest?

Interest calculated on both the principal and the accumulated interest. "Interest on interest" — the foundation of wealth building.

Daily vs monthly compounding?

Daily compounding earns slightly more than monthly, which earns more than annual.

How does Einstein relate to compound interest?

Often attributed to Einstein as the "eighth wonder of the world" — this quote reflects how powerful exponential growth is over time.