Exponential Growth Calculator
Project growth or decay from an initial value, rate and time — doubling time, rule of 72 and a year-by-year table.
Continuous: P(t) = P₀·eʳᵗ. Discrete: P(t) = P₀(1 + r/n)^(n·t) with n periods per year. Negative rates model decay — halving time replaces doubling time. Rule of 72 is a quick mental shortcut: years ≈ 72 / rate%.
About Exponential Growth Calculator
Project growth or decay from an initial value, rate and time — doubling time, rule of 72 and a year-by-year table.
Exponential Growth Calculator applies the standard formula for this calculation and returns a clean, readable result — no spreadsheet setup or manual working required.
How to Use Exponential Growth Calculator
- Enter your numbers in the input fields shown above.
- Choose any options (units, rounding, precision) if the tool offers them.
- The result updates automatically — no button needed.
- Copy the answer or reset the fields to start a new calculation.
Key Features
- Instant results with a clear, readable output format.
- Handles decimals, percentages and large numbers cleanly.
- Fast and private — every calculation runs on your device.
Frequently Asked Questions
What formula does Exponential Growth Calculator use?
Exponential Growth Calculator uses the standard, widely accepted formula for this calculation. Results are rounded only for display, so they are reliable for homework, planning and quick checks.
Is Exponential Growth Calculator free to use?
Yes. Exponential Growth Calculator is completely free with unlimited use — no account, download or payment required.
Is my data uploaded to a server?
No. Exponential Growth Calculator runs entirely in your browser. Your inputs are never sent to our servers or stored anywhere.
Does Exponential Growth Calculator work on mobile?
Yes. The interface is fully responsive and works in any modern browser on Android, iPhone, tablets and desktops.
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