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Burn Rate Calculator

Track how fast your startup is spending its cash reserves before reaching profitability.

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Calculation Parameters

Specify your inputs below.

Calculated Result

Monthly Burn Rate $10,000.00 / mo
Runway Estimate 9.0 months
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Expert Tip

The cash runway represents how many months your startup can survive at the current burn rate.

How this Calculator Works

The cash burn rate calculator measures how quickly cash reserves are spent over a specified time period. The runway is estimated by dividing the ending cash by the monthly burn rate.

Formula & Methodology

Monthly Burn Rate = (Starting Cash - Ending Cash) / Months Runway (Months) = Ending Cash / Monthly Burn Rate

Step-by-Step Calculation Example

Here is a step-by-step example showing how the calculations are performed:

Starting Cash = $150,000, Ending Cash = $90,000, over 6 months: - Monthly Burn Rate = ($150,000 - $90,000) / 6 = $10,000/month - Runway = $90,000 / $10,000 = 9 months

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Detailed Insights & Expert Guide

ℹ️ About this Calculation

This business planning and financial management calculator analyzes operational profitability, cash flow runways, unit economics, and corporate growth performance based on standard managerial accounting and SaaS financial models.

Variable Glossary

Input

Financial Metrics

Revenue, fixed/variable costs, ARPU, CAC, churn rate percentage, or working capital inventory balances.

Parameter

Performance Ratio

Customer Lifetime Value (LTV), Monthly Recurring Revenue (MRR), break-even volume, or payback period duration.

How to Calculate Step-by-Step

1

Step 1

Input your business financial statements, unit sales prices, or marketing expense figures.

2

Step 2

Select reporting timeframes (monthly, quarterly, annual) or operational benchmark factors.

3

Step 3

View calculated margin ratios, burn rate projections, payback milestones, or profitability indexes.

FAQ

What is a healthy LTV to CAC ratio for subscription businesses?
A target LTV:CAC ratio of 3:1 or higher is generally considered healthy for SaaS and subscription models, indicating sustainable marketing ROI without overspending on acquisition.
How is the Break-even point calculated?
Break-even Units = Fixed Costs / (Price per Unit - Variable Cost per Unit). It determines the sales volume required to cover total operational expenses without profit or loss.
Can online business calculators replace professional financial auditing?
No. These calculators provide strategic modeling and decision support. Formal financial reporting, tax planning, and GAAP/IFRS audits require a certified public accountant (CPA) or financial advisor.