Savings Calculator
See how savings grow with regular deposits and interest. Free online Savings Calculator. Calculate savings online — fast, accurate, mobile-friendly, no signup n
Derivation
- ├── 01Given
starting = $1000, monthly = $200, APY = 5%, years = 10 - ├── 02Formula
FV = P·(1+r)ⁿ + M·((1+r)ⁿ − 1)/r (r = APY/12, n = months) - ├── 03Monthly rate r
5% / 12 = 0.004167 - ├── 04Total months n
10 × 12 = 120 - ├── 05(1+r)ⁿ
1.647009 - ├── 06Principal growth
1000 × 1.6470 = $1,647.01 - ├── 07Contributions growth
200 × (1.6470 − 1)/0.0042 = $31,056.46 - ├── 08Final balance$32,703.47
- ├── 09Contributions$25,000
- └── 10Interest earned$7,703.47
The US 401(k) exists because of a single 1978 tax-code subsection (section 401(k)) that accidentally allowed tax-deferred salary deferrals.
Understanding the Savings Calculator
The Savings Calculator helps you compute see how savings grow with regular deposits and interest.. It runs entirely in your browser with no sign-up required.
Quick calculators for the math that shouldn’t need a notepad — instant, accurate, private to your browser. The Savings Calculator sits in that toolkit — it see how savings grow with regular deposits and interest. Enter your numbers above and the result updates instantly; every step of the math is shown in the Derivation panel so you can see exactly how the answer was reached.
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