How long will your cash last?
Enter your cash, monthly spend and monthly receipts. See burn rate and runway in months.
Your numbers
Example numbers are filled in. Replace them with yours.
Total across all your bank accounts.
Total monthly payments out.
Total monthly receipts, including sales and other inflows.
Runway
4 months
Cash ÷ net burn
Runway under about six months leaves little room for fundraising or a slow quarter. Treat this as a prompt to plan, not a forecast.
- Gross burn per monthTotal cash out.
- ₹4,00,000
- Net burn per monthCash out − cash in.
- ₹3,00,000
Open shows the balance in every account in one place, so runway is based on cash you can see today.
A calculation for planning, not accounting, tax or investment advice. It uses only the numbers you enter, and everything is calculated in your browser: nothing you type leaves it.
Questions about this tool
What is gross burn and net burn?
Gross burn is everything you spend in a month. Net burn is what you spend minus what you receive. If receipts are at least as large as spend, you are cash positive.
How is runway calculated?
Runway in months = cash in the bank ÷ net burn per month. Rs 12,00,000 with a net burn of Rs 3,00,000 a month gives four months.
Which cash should I use?
The total across all your bank accounts. Seeing every balance together is the hardest part when you bank with several banks.
Is runway a forecast?
No. It assumes spend and receipts stay as entered. Revisit it every month, and when something big changes, such as a hire, a large payment or a late customer.
Bring your banks together. Get more done.
Connect your current accounts and start using Open through your dashboard, ERP or internal systems.