Business Tools
Use this cash runway calculator to compare net burn, adjusted expenses, monthly position, and runway before hiring, revenue, or fundraising decisions.
Live calculator
Months before cash reaches zero at this burn rate.
Cash consumed each month.
Adjusted expenses: $145,000.
Use this for planning and comparison. Contracts, collections, payables, tax timing, payroll, refunds, one-time bills, seasonality, and accounting treatment can change the real business result.
Quick answer
Cash Runway Calculator uses cash balance, monthly revenue, monthly expenses, and expense change % to estimate adjusted expenses, net burn, monthly position, months of runway, and default alive status before cash-flow, hiring, or fundraising decisions.
Formula
Runway = cash balance / (monthly expenses - monthly revenue)If monthly revenue is greater than expenses, the business is default alive at the current run rate.
How to use
Example
Calculator use
Before relying on it
Details
These notes make the assumptions explicit, especially where the same search query can mean slightly different things.
Runway should start from cash that can actually be spent, not booked revenue, pipeline, accounts receivable, or invoices that may collect later than expected.
Use the expense change percentage for hiring plans, vendor cuts, payroll changes, or planned operating increases before deciding whether the current runway is enough.
If monthly revenue is greater than monthly expenses, the calculator reports a positive monthly position instead of finite runway.
After checking runway, review small-business cash flow, burn multiple, MRR, net payment terms, and client profitability before changing hiring, fundraising timing, or expense plans.
Source notes
Benchmarks
The calculator is a decision aid, not a fixed rule. Use the output to compare scenarios and document your assumptions. Benchmark ranges are broad planning heuristics unless this page names a specific source for the range.
Usually requires immediate fundraising, cuts, or revenue acceleration.
Enough to operate, but decisions should be made before the window closes.
Often gives a team time to improve metrics before raising or scaling.
Creates room for strategy, experiments, and cleaner fundraising timing.
Calculator accuracy
The formula, inputs, example, and limitations are shown so the result is checkable, not just a number in a box.
Runway = cash balance / (monthly expenses - monthly revenue)
Cash balance, Monthly revenue, Monthly expenses, Expense change %
Business results depend on contracts, accounting treatment, taxes, payment timing, refunds, collections, and operating assumptions.
June 6, 2026
Toolkit Shelf. Cash Runway Calculator. Last reviewed June 6, 2026. https://toolkitshelf.com/tools/startup-runway-calculator
FAQ
Cash runway is the number of months a business can keep operating before cash reaches zero at the current or projected burn rate.
Net burn is monthly expenses minus monthly revenue. If revenue is greater than expenses, the business is not burning cash.
Most teams should recalculate runway monthly, and again after major hiring, pricing, or revenue changes.
Only count accounts receivable after thinking through delayed collections and payment risk. Cash runway is safest when it starts from available cash, then uses a separate cash-flow view for receivables and payables.
Use the expense change percentage for planned hiring or cuts, then compare the result with fundraising timing, revenue growth, burn multiple, and cash-flow timing before changing the operating plan.
No. Business tools are scenario planners. Contracts, taxes, payment timing, accounting treatment, refunds, and legal requirements can change decisions.