Total Growth
33.10%
Business Forecast Calculator
Project future revenue using a constant annual growth rate.
Revenue in Year 3
$133,100.00
Current Revenue
$100,000.00
How to use the Business Forecast Calculator
The Business Forecast Calculator is free and runs entirely in your browser — no sign-up, and nothing you enter leaves your device. It opens pre-filled with a realistic example, so you can see how it works before replacing any figure with your own; the results update as you type. Press Calculate to refresh the result panel, or Reset to return to the example.
The inputs it asks for:
- Current Annual Revenue — a dollar amount.
- Annual Growth Rate — a percentage (enter 6 for 6%).
- Years to Forecast — a number.
The formula
It compounds your current revenue forward at a constant annual growth rate, year on year, to project the figure at the end of your forecast horizon:
Revenue in year n = Current revenue × (1 + growth)ⁿ- growth
- the assumed constant annual growth rate
- n
- the forecast year
Constant-growth compounding is a clean baseline, but real revenue rarely grows at one steady rate — markets saturate, competition arrives, cycles turn. Treat the projection as one scenario, and test a range of growth rates rather than banking on a single line.
Worked example
Using the example values — Current Annual Revenue $100,000.00, Annual Growth Rate 10%, Years to Forecast 3 — the Business Forecast Calculator returns a Revenue in Year 3 of $133,100.00. It also reports Total Growth (33.10%), Current Revenue ($100,000.00).
Prefer your own numbers? Change any field above and this recomputes instantly.
Key terms
- Compound growth
- Growth applied to a rising base each period, producing an exponential curve.
- Growth rate
- The assumed year-over-year percentage increase.
- Forecast horizon
- How many years out the projection runs.
Frequently asked questions
Is constant growth realistic?
As a baseline over short horizons, often roughly. Over longer spans growth usually slows as a business matures — so a single high rate can overstate later years.
What growth rate should I use?
Base it on recent history and market conditions, and test a low, medium and high case rather than one figure. The compounding makes small rate differences huge over time.
Does it account for costs or profit?
No — it projects top-line revenue only. Profit depends on costs and margins, which this doesn't model.