Exponential Growth Prediction Calculator

Your details

Forward mode uses a known rate to predict a future value. From-data mode calculates the implied rate from past observations, then projects forward.
The starting quantity (population, revenue, website visits, etc.).
Percentage change each period. Positive = growth, negative = decay (e.g. -5 for 5% shrinkage per period).
%
How many periods (years, months, days, etc.) to project forward.
Label for the time axis on the projection chart.
Predicted value
3,138.43

The projected quantity after the specified number of periods.

Total growth213.84%
Absolute gain / loss2,138.43
Doubling time7.27
Equivalent continuous rate9.531%
Absolute gain / loss2,138.43

The value will grow to 3,138.43 after the specified time.

  • Total increase: 213.8% (2,138.43 gained).
  • At this rate, the value doubles every 7.3 months. You can use the Rule of 70 to estimate this: 70 / 10.0 is approximately 7.0 months.
  • The equivalent continuously-compounded rate is 9.5310% per period. This is the "k" in the natural exponential form x(t) = x0 * e^(kt).

Next stepExponential growth cannot continue indefinitely. For long-horizon forecasts, consider whether saturation effects, competition, or resource constraints will eventually limit growth.

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