Work Tools

Cash Runway Calculator

Estimate how long current cash may last based on monthly burn and any monthly revenue offset.

Updated April 11, 2026
Free online tool
Planning and research use

Why this page exists

Cash planning is easier when cash balance and monthly burn are translated into a runway estimate instead of tracked as separate numbers. This calculator helps visitors estimate monthly net burn and how many months of runway current cash may support under a simple planning model.

Interactive tool

Run the estimate

Enter your numbers and read the result first, then use the sections below to understand what affects the outcome.

Calculator

Cash runway calculator

Estimate how long current cash may last based on monthly burn and any monthly revenue offset.

Result

7.8 months

Estimated runway based on current cash divided by monthly net burn.

Monthly net burn$23,000

Estimated months of runway7.8 months

Current cash balance$180,000

Monthly revenue offset$9,000

$32,000 in monthly expenses offset by $9,000 in monthly revenue leaves about $23,000 of net burn in this estimate.
At that pace, $180,000 in cash lasts about 7.8 months.
Runway is easiest to plan around when the burn estimate is reviewed often and updated as revenue, staffing, and spending shift.

This is a planning estimate only. Real runway can change with irregular expenses, new revenue, financing, and timing differences in cash collection or spending.

Planning note

Last updated April 11, 2026. Use this tool to compare scenarios and plan ahead, then confirm important details with the lender, employer, insurer, contractor, or other qualified provider involved in the final decision.

How it works

What the calculator is doing

Enter the current cash balance, average monthly expenses or burn, and any monthly revenue offset.

The calculator subtracts the revenue offset from expenses to estimate monthly net burn.

It divides cash by net burn to estimate runway in months when the burn is positive.

Understanding your result

Runway is a practical planning metric, but it changes quickly when revenue, staffing, or spending shifts. This estimate is best used as a snapshot that should be revisited often rather than as a fixed deadline.

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Examples

Ways people use this tool

Example scenarios help turn a quick estimate into a more useful comparison or planning step.

Check how many months of runway the current cash balance supports

A runway estimate can make burn-rate discussions easier to understand in plain months.

See how revenue changes runway

Adding monthly revenue offset shows how a partial income stream can extend runway significantly.

Use the result as an operating planning signal

A simple month count can make it easier to discuss urgency around spend reduction or revenue growth.

FAQ

Common questions

How is runway calculated here?

The calculator subtracts monthly revenue offset from monthly expenses to estimate net burn, then divides current cash by that burn when the result is positive.

What if monthly revenue covers all monthly burn?

If revenue fully covers or exceeds the burn entered, the calculator treats the runway as not currently limited by net burn in this simple estimate.

Why should runway be updated often?

Because expenses, revenue, hiring, and collections can all change quickly, which can materially move the runway estimate.

Related tools

Keep comparing

Use these related tools to compare nearby scenarios, check a second estimate, or keep narrowing down the right decision.

Work ToolsUpdated April 11, 2026