Fundraising “How Much to Raise” Calculator
Estimate a sensible raise from your burn, the runway you want to buy, and how fast burn will grow as you hire — then see the post-money valuation implied by a target dilution.
Suggested raise
Frequently asked questions
How much should a startup raise?
A common approach is to raise enough for 18–24 months of runway, including a buffer, while selling roughly 15–25% of the company. This calculator estimates the amount from your projected burn over that period.
Why raise for 18–24 months?
It typically takes 12–18 months to hit the milestones that justify a higher valuation next round, plus 3–6 months to actually close the raise. Less runway forces you to raise from a weaker position.
What is implied valuation?
If you raise an amount and sell a target percentage, the implied post-money valuation = amount ÷ dilution %, and pre-money = post-money − amount raised. It is a sanity check, not a market quote.
Should I raise as much as possible?
Not necessarily. More cash extends runway but increases dilution and raises expectations for the next round. Raise enough to comfortably hit the milestones that unlock your next valuation step-up.