TOOLS · FUNDRAISING CALCULATOR
Model the round before you raise it.
Enter your numbers and see the raise your plan actually needs, the runway it buys, and what it costs in ownership. Your numbers never leave your browser. Nothing is stored, nothing is sent anywhere.
Your numbers
Fill in what you know. Optional fields can stay blank.
What you spend minus what you earn, per month.
Use a higher number if you plan to hire. Leave blank to use your current net burn.
Most pre-seed and seed rounds fund 12 to 24 months.
Extra cushion on top of the plan. Set to 0 to skip it.
Leave blank to skip dilution. This is your input, not a prediction.
Shares set aside for future hires, as a share of the company after the round.
The next fundraise, profitability, or the metric your round must reach.
Your round
Enter your monthly net burn to see results.
Compare raise sizes
| Raise | Runway after | Investor ownership |
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How this is calculated
Every number on this page comes from these formulas. Nothing else is assumed.
Current runway = cash in bank / monthly net burnRaise needed = (average monthly burn x target months x (1 + buffer)) - cash in bank, never below zeroRunway after the raise = (cash in bank + raise) / average monthly burnInvestor ownership = raise / (pre-money valuation + raise)Founder ownership after = (1 - investor ownership) x (1 - option pool)
This is a planning estimate, not financial advice. It models flat average burn, not revenue growth, and it cannot tell you what valuation you will get. Use it to set the ask, then test the plan with your accountant or lawyer before you sign anything.
Need the number now?
Round sizing is part of the work we do with founders on a call. Book one, or get a free read on your deck in the meantime.