How Much Will Your Money Grow?

Compound interest is the engine of wealth creation. Small amounts, left to grow, produce extraordinary results over time.

FVCompoundingGrowthRule of 72

Live Result

19,348.42

ƒ: PV * (1 + r)^nraw: 19348.4

ƒ(x)

Use variable names from the panel above (e.g. FV, r, n) — or type numbers directly: 10000 / (1 + 0.08)^10

Present Value — amount invested today

PV = 5000

r% as decimal

Annual interest/growth rate (decimal)

r = 0.07

Number of years

n = 20

💡 You can also enter values directly in the formula: 10000 / (1 + 0.08)^10

⬇ Export Calculation

Exports a plain .txt file with your expression, formula, all variable values, result, and educational notes — ready to paste into any report, Word doc, Notion, or Google Docs.

The exported file includes the formula in standard mathematical notation — you can paste it directly into Excel, Google Sheets, or back into FinanceSheep.

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Learn: How Much Will Your Money Grow?

Time Value of Money · Educational Guide

The Core Idea

Einstein reportedly called compound interest the eighth wonder of the world. $5,000 invested at 7% for 20 years becomes nearly $20,000 — without adding another cent. The secret? You earn returns on your returns.

How It Works

Future Value = PV × (1 + r)^n. Each year you earn interest on the original principal PLUS all accumulated interest. The exponent n makes this grow exponentially, not linearly.

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Real-World Example: $5,000 at 7% for 20 years: FV = 5,000 × (1.07)^20 = 5,000 × 3.869 = $19,348. Nearly 4× your money just by waiting and letting compounding work.

How Much Will Your Money Grow?

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