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Compound Interest Calculator

Project growth with compounding and optional recurring deposits. Clear totals and an optional per-year schedule. Built by Tolyo.

CalculatorsPopular
Inputs

E.g. $, €, ₨

Effective Annual Rate: 8.30%

Split across 12 compounding periods.

Turn off for a minimal view.

Compounds/yr: 12
Results

Future value

$40,491.01

Total contributions

$12,000.00

Total interest

$18,491.01

Starting amount

$10,000.00

Per-Year Schedule
YearStartingContributionsInterestEnding
1$10,000.00$1,200.00$874.99$12,074.99
2$12,074.99$1,200.00$1,047.21$14,322.20
3$14,322.20$1,200.00$1,233.73$16,755.93
4$16,755.93$1,200.00$1,435.73$19,391.65
5$19,391.65$1,200.00$1,654.49$22,246.14
6$22,246.14$1,200.00$1,891.41$25,337.55
7$25,337.55$1,200.00$2,148.00$28,685.55
8$28,685.55$1,200.00$2,425.88$32,311.43
9$32,311.43$1,200.00$2,726.83$36,238.26
10$36,238.26$1,200.00$3,052.75$40,491.01
Totals$12,000.00$18,491.01

Tips

  • “Deposits timing: Beginning” assumes you deposit at the start of each compounding period (grows slightly faster).
  • Changing “Compounds per year” updates both interest calculation and how deposits are split across the year.
  • The Effective Annual Rate (EAR) shows your true yearly growth from compounding.
Compound Interest Calculator — Tolyo | Simple & Powerful · Tolyo