Startup Runway Calculator — Free Google Sheets Template
Calculate how many months your cash will last. Enter your numbers, see your runway.
Preview of the Startup Runway Calculator spreadsheet showing cash, expenses, revenue inputs and runway output
This free spreadsheet calculates your startup runway from three inputs: your current cash balance, your monthly expenses, and your monthly revenue. It shows your runway in months, your net burn rate, and your projected cash-out date.
The template includes a 12-month projection table showing how your cash balance decreases month by month, a simple scenario section where you can model changes to expenses or revenue, and a summary dashboard with your key metrics.
It's designed for founders who want a quick runway check without building a full financial model. If you need something more powerful — live tracking, scenario overlay charts, alerts, and investor reports — RunwayCal does everything this spreadsheet does, automatically.
What's included
- Cash balance input with runway computation
- Monthly expense breakdown (payroll, tools, rent, other)
- Monthly revenue input (MRR or total)
- Net burn rate calculation (expenses minus revenue)
- Runway in months (cash / net burn)
- Projected cash-out date
- 12-month cash projection table
- Simple scenario section (adjust expenses or revenue, see new runway)
- Summary dashboard with key metrics
How to use this template
Make a copy
Click "Use this template" to create your own copy in Google Sheets. The original stays unchanged.
Enter your cash balance
Put your current bank balance in the Cash Balance cell. Include all accessible cash — checking, savings, money market.
Enter your monthly expenses
Break down your monthly spending: payroll, tools/software, rent, marketing, and other recurring costs.
Enter your monthly revenue
Add your current monthly revenue (MRR for SaaS, or total monthly revenue for other businesses).
Read your runway
The dashboard shows your runway in months, net burn rate, and projected cash-out date. The 12-month table shows your monthly cash trajectory.
What this template can't do
- Doesn't update automatically when your expenses or revenue change — you have to remember to update it
- Can't model multiple scenarios side-by-side or overlay them on one chart
- No alerts when burn rate increases or runway drops below a threshold
- Can't share a live view with investors — you'd have to export and email
RunwayCal does this automatically
Instead of maintaining a spreadsheet, RunwayCal computes your runway from the team, tools, and deals you define. It updates in real-time, models scenarios with one click, alerts you when something changes, and shares a live dashboard with your board.
- Runway recomputes automatically when any input changes
- Scenario overlay chart — compare multiple futures on one chart
- 20 insight rules flag burn spikes and runway warnings
- Secure board viewer — investors see live data, no login needed