Scenario 1
Positive cash flow
$25,000 monthly income, $18,000 expenses → $7,000 positive cash flow, 28% cash flow margin.
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Cash Flow Calculator
Know if your business is truly cash-flow positive — not just profitable on paper.
Adjust your inputs
Results update instantly as you type or drag.
0 – 100,000,000
$
0 – 100,000,000
$
0 – 100,000,000
$
Current cash on hand (for runway calculation)
Quick insights
Cash flow margin
28%
Cash runway
999
Quick answer
What is cash flow?
Cash flow = Total inflows − Total outflows. Positive cash flow means you take in more than you spend. Profit and cash flow are different — you can be profitable but cash-negative.
How it works
From inputs to result in four steps
A quick walkthrough of what this calculator does behind the scenes.
- 1
Enter all monthly income sources.
- 2
Enter all monthly expenses.
- 3
See net cash flow and cash position.
Formula
The math behind the number
No black box — here's exactly how the result is computed.
Formula
Net cash flow = Total inflows − Total outflows
Cash flow margin = Net cash flow ÷ Total inflows × 100
Cash runway = Cash reserves ÷ Monthly burn rateExamples
Real-world scenarios
See how the numbers play out for typical use cases.
Scenario 2
Cash-negative startup
$10,000 income, $22,000 expenses → −$12,000 burn rate. $100k reserves = 8.3 months runway.
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