Burn Rate Excel Template vs Free Web Calculator

Burn rate is the kind of number you want at your fingertips. Some founders prefer Excel because they can model and save history. Others prefer a web calculator because it is fast and visual. Both work. Here is when to use which.

The case for Excel

Excel and Google Sheets win when you need:

• Scenario modeling: Multiple parallel sheets showing "what if we cut $20K" vs "what if we hire two engineers"
• Historical tracking: A row per month going back a year, so you can see trend lines
• Sharing with finance: CFOs and bookkeepers live in spreadsheets
• Custom expense categorization: Detailed breakdowns by department, project, or vendor
• Integration with QuickBooks/Xero: Pull data directly from your accounting system

The case for a web calculator

A web tool wins when you need:

• Speed: Three inputs and you have an answer in 5 seconds
• A visual chart: Excel charts take time to set up; web tools render instantly
• No setup: Open browser, type numbers, done. No file to find, no template to build
• Privacy: Browser-based tools never send your financial data anywhere
• Mobile use: Check runway from your phone in a meeting without opening Excel

The Excel formulas you need

If you go the Excel route, here are the formulas:

Cell	Formula	Result
B10 (gross burn)	=SUM(B2:B9)	Total monthly expenses
B12 (net burn)	=B10-B11	Expenses minus revenue
B14 (runway months)	=B13/B12	Bank ÷ net burn
B15 (zero date)	=TODAY()+B14*30	Calendar date money runs out

That is the entire calculation. Five formulas. If you find yourself with hundreds of rows, you have probably overcomplicated it.

A minimal burn rate spreadsheet

A	B
Payroll	45000
Software	3500
Office	4000
Marketing	8000
Other	2500
Gross burn	=SUM(B1:B5)
Monthly revenue	15000
Net burn	=B6-B7
Bank balance	340000
Runway (months)	=B9/B8
Zero date	=TODAY()+B10*30

Eleven rows. That is all you need for a functional burn rate sheet. Add categories as your business grows.

Why most templates are overkill

Search "burn rate template" and you will find spreadsheets with 200+ rows, multiple tabs, and complex projections. Most are written for Series B+ companies with finance teams. For a seed-stage startup, a simple 11-row sheet beats a complex template you do not understand.

Start simple. Add complexity only when you actually need it.

The hybrid approach

Many founders use both: Excel for monthly tracking and historical analysis, a web calculator for quick "what if" checks and visual sharing with the team. Each tool has its strength.

The burn rate calculator takes 30 seconds to use, includes a balance trajectory chart, and runs entirely in your browser — no data sent anywhere. Use it for daily check-ins. Save your historical detail in Excel for monthly reviews.