Runway Calculator
Calculate how many months of runway your cash balance provides.
Amortization schedule
| # | Payment | Principal | Interest | Balance |
|---|---|---|---|---|
Showing first 12 of months.
Growth over time
| Year | Invested | Value |
|---|---|---|
Introduction
Runway Calculator — Calculate how many months of runway your cash balance provides. Enter Current cash balance, Monthly burn rate to get an instant, accurate result.
Formula
Runway (months) = current cash balance / monthly burn rate.
Step-by-step
- Enter the Current cash balance.
- Enter the Monthly burn rate.
- Click Calculate to see your result instantly.
Real-world example
Example: With Current cash balance = 50000, Monthly burn rate = 10000, the Runway Calculator gives a result of 5.
Frequently Asked Questions
What counts as "monthly burn rate" here?
Typically net burn — monthly cash outflow after subtracting any revenue — giving a realistic estimate of months until cash runs out.
Does this assume burn rate stays constant?
Yes — it's a straight-line projection based on your current burn rate; actual runway will differ if spending or revenue changes.
What inputs does the Runway Calculator need?
You'll need to provide: Current cash balance, Monthly burn rate. All fields use sensible defaults, so you can see a working example immediately and then adjust the values to match your own numbers.
How accurate is the Runway Calculator?
The Runway Calculator applies the formula exactly as calculated — Runway (months) = current cash balance / monthly burn rate. — so results are precise for the inputs you provide. Accuracy depends on entering correct, realistic input values.
Is the Runway Calculator free to use?
Yes, the Runway Calculator is completely free, requires no signup, and runs instantly in your browser.
About the Runway Calculator
The Runway Calculator uses a real, verifiable formula — Runway (months) = current cash balance / monthly burn rate. — so results are accurate every time, not an approximation.