Exponential Growth Calculator
Project growth or decay at a constant percentage rate.
After 12 periods
1,795.8563
Gained
795.8563
Doubling time (periods)
14.21
Multiplication repeated
Exponential change multiplies by the same factor each period: N = N₀(1 + r)ᵗ. Five percent growth for 12 periods is ×1.05 twelve times — 1.80×, not the 1.60× linear thinking expects. The gap between the two intuitions widens without bound.
Everything exponential
Population, compound interest, viral spread, radioactive decay, and Moore's law all follow this one equation with different signs and rates. The doubling time (ln 2 ÷ ln(1+r)) is its most communicable statistic — the rule of 72 is its mental shortcut.
Frequently asked questions
- How does the Exponential Growth Calculator work?
- Project growth or decay at a constant percentage rate.
- Is the Exponential Growth Calculator free to use?
- Yes. The Exponential Growth Calculator is completely free, runs entirely in your browser, and requires no account or sign-up. Your inputs never leave your device.
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