Enter what you've got saved, what you actually spend, and what you could trim. The runway calculator tells you exactly how much runway you have to test your idea — in years, months and weeks.
01 — Fuel in the tank
This is your call: put in everything you've got, or just the slice you're genuinely willing to lose chasing this idea. Either way, only count money you can actually reach — no pensions or anything locked away.
£
mo
02 — Monthly burn rate
Cost
Actual
Reduced
Total / month
£0
£0
03 — Incoming fuel (optional)
Got a partner's income, a part-time job, freelance work, or anything else that'll land while you're building? Add it here, and tell us when it starts.
No other income added — runway is calculated on savings alone.