How many months until
the money runs out?
Enter your cash, burn rate, and revenue. Get an instant runway projection with month-by-month breakdown and fundraising scenarios.
Total cash available: $500K
Total monthly spending: $30K/mo
Current MRR: $5K/mo
MoM revenue growth rate: 10%
Your Runway
36 months
Excellent — long runway
Cash Projection (Month-by-Month)
Month number →
Monthly Breakdown
| Month | Revenue | Burn | Net Burn | Cash Left |
|---|---|---|---|---|
| 1 | $5K | $30K | $25K | $475K |
| 2 | $6K | $30K | $25K | $451K |
| 3 | $6K | $30K | $24K | $427K |
| 4 | $7K | $30K | $23K | $403K |
| 5 | $7K | $30K | $23K | $381K |
| 6 | $8K | $30K | $22K | $359K |
| 7 | $9K | $30K | $21K | $337K |
| 8 | $10K | $30K | $20K | $317K |
| 9 | $11K | $30K | $19K | $298K |
| 10 | $12K | $30K | $18K | $280K |
| 11 | $13K | $30K | $17K | $263K |
| 12 | $14K | $30K | $16K | $247K |
| 13 | $16K | $30K | $14K | $233K |
| 14 | $17K | $30K | $13K | $220K |
| 15 | $19K | $30K | $11K | $209K |
| 16 | $21K | $30K | $9K | $200K |
| 17 | $23K | $30K | $7K | $193K |
| 18 | $25K | $30K | $5K | $188K |
| 19 | $28K | $30K | $2K | $186K |
| 20 | $31K | $30K | $0 | $186K |
| 21 | $34K | $30K | $0 | $190K |
| 22 | $37K | $30K | $0 | $197K |
| 23 | $41K | $30K | $0 | $208K |
| 24 | $45K | $30K | $0 | $222K |
Extend your runway by 10x
Replace $200K+/year in developer costs with a $499/month AI co-founder. It doesn't need equity, benefits, or sleep.
Start free trialWhat is startup runway?
Startup runway is the number of months your company can operate before running out of cash. It's calculated by dividing your available cash by your net monthly burn rate (expenses minus revenue).
How to calculate burn rate
Your gross burn rate is your total monthly spending — salaries, rent, tools, cloud hosting, marketing. Your net burn rate is gross burn minus any revenue you're generating. If you spend $50K/month and earn $20K/month, your net burn is $30K/month.
How much runway do you need?
Most investors recommend 18–24 months of runway after each funding round. Less than 6 months is the danger zone — you'll be fundraising from a position of weakness. With an AI co-founder, you can dramatically reduce your burn rate by replacing $200K+/year engineering costs with a $499/month subscription.
When should you start fundraising?
Start fundraising when you have 9–12 months of runway left. The process typically takes 3–6 months, and you want to negotiate from strength, not desperation. This calculator helps you plan the timing by projecting different growth scenarios.