Free Burn Rate Calculator — No Signup, No Spreadsheet, No Excel Skills
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Most "free" burn rate calculators online want your email, your company name, or both before they show you the answer. Some want all of that plus a free trial signup. Then they pitch you on a paid plan when you click anywhere on the result page.
free burn rate calculator skips all of that. No signup, no email, no upsell. You enter three numbers, you get the answer, you leave.
Why "No Signup" Actually Matters
Burn rate is sensitive financial data. It tells anyone who sees it your monthly cost structure, your revenue, and how close you are to running out of money. That information is valuable to competitors, recruiters trying to hire your team, and journalists looking for a story.
When you enter that data into a tool that requires signup, you are creating a record. That record sits on someone else's database. It can be subpoenaed, leaked in a breach, or used to target you with sales pitches the moment your runway gets short.
A no-signup, browser-based calculator avoids all of that. Your numbers never leave your device. Nothing is logged. Nothing is stored. Close the tab and the data is gone forever.
How It Works Without an Account
The calculator runs in JavaScript inside your browser. When you type a number into the cash field, your browser does the math locally and shows the result. There is no server call. No data is sent anywhere.
You can verify this yourself by opening your browser's developer tools, going to the Network tab, and entering numbers. You will see no outgoing requests. The calculator works exactly the same offline as it does online — try it: load the page, disconnect from wifi, and the math still works.
Sell Custom Apparel — We Handle Printing & Free ShippingWhat You Get for Free
- Gross burn rate (monthly)
- Net burn rate (after revenue)
- Runway in months
- Exact zero date (when your cash hits $0)
- Visual chart showing cash balance over time
- FAQ guide explaining everything
No premium tier. No "upgrade for chart." The free version is the only version.
When You Need More
If you outgrow this — and many growing startups do — there are excellent paid options like Runway Financial, Pry, Causal, and Finmark. Use them when you need scenario planning, real-time accounting integrations, and shared models with a finance team.
Until then, a free calculator covers 90% of what early founders ask burn rate tools to do. Try it before you pay for anything.
Open the Calculator
Three inputs, four outputs. Free, private, no signup. Try it now.
Open Burn Rate CalculatorFrequently Asked Questions
Is it really free or is there a hidden cost?
Really free. No paid tier, no usage limits, no "free trial" that converts. The calculator is free as part of WildandFreeTools, a collection of browser-based tools supported by occasional banner ads (not by selling your data).
Can I use it offline?
Yes. Once the page is loaded in your browser, it works without an internet connection. You can disconnect wifi and the calculator still functions because the math runs locally.
Will my numbers be saved if I come back later?
No. Nothing is stored. Each visit is fresh. If you want to save the result, take a screenshot or copy the numbers into a note. This is a privacy feature, not a bug.