How to calculate SaaS runway?

Divide current cash balance by net burn rate. Net burn rate equals monthly expenses minus monthly revenue.

What is a good runway for SaaS startups?

Many founders target 12 to 18 months of runway, depending on growth rate, fundraising plans, and operating model.

SaaS runway calculator

SaaS Runway Calculator for Net Burn Rate Calculation and Cash Flow Projection

Q: What is net burn rate?

Net burn rate is monthly expenses minus monthly revenue. A negative result means the business is profitable or break-even.

Track current cash, monthly expenses, and monthly revenue in real time. This founder-focused calculator estimates runway, flags caution zones, and models a 24-month cash balance trend.

Real-time calculationsEnglish onlySEO-ready FAQ schema

Input and KPI Dashboard

Enter your financial assumptions below to instantly update runway results and projection charts.

Current Cash Balance ($)

Monthly Expenses ($)

Monthly Revenue ($)

Net burn = expenses − revenue

Runway

Months Remaining

Caution

14.3 months

Your runway of X months is in the caution zone. Consider optimizing burn rate or raising capital.

Caution

Your runway of 14.3 months is in the caution zone. Consider optimizing burn rate or raising capital.

Net Burn Rate

$35,000

Monthly expenses minus monthly revenue

Monthly Profit / Loss

Positive values indicate profitability

Projected Cash After 12 Months

$80,000

Using the current burn rate

Frequently Asked Questions

How to calculate runway?

Divide current cash balance by net burn rate. When revenue is greater than or equal to expenses, runway becomes infinite or profitable.

What is a good runway?

A common target is 12 to 18 months for many SaaS teams, but the right target depends on growth stage and fundraising timing.

What is net burn rate?

Net burn rate equals monthly expenses minus monthly revenue. It represents the monthly cash that is consumed after revenue is applied.