CapEx-to-Revenue Ratio
Quick Definition
A financial ratio measuring the percentage of revenue a company spends on capital expenditures, indicating capital intensity.
Key Takeaways
- Calculated as CapEx divided by total revenue
- Lower ratios indicate asset-light, more profitable business models
- Software typically 2-5%, telecom 15-25%, utilities 20-30%
- Use 5-year averages for more meaningful comparisons
- Declining ratio could signal under-investment — context matters
What Is CapEx-to-Revenue Ratio?
The CapEx-to-revenue ratio (also called capital intensity ratio) measures what percentage of a company's revenue is reinvested in capital expenditures. It is calculated by dividing capital expenditures by total revenue. A higher ratio indicates a more capital-intensive business that must reinvest a larger share of its income to maintain and grow operations.
This ratio is essential for comparing businesses across industries and understanding their economic characteristics. Asset-light businesses like software companies typically have CapEx-to-revenue ratios of 2-5%, meaning they convert most of their revenue into profits and cash flow. In contrast, capital-intensive industries like telecommunications (15-25%), utilities (20-30%), and semiconductor manufacturing (25-40%) must reinvest significant portions of revenue just to remain competitive.
For investors, lower CapEx-to-revenue ratios generally indicate more attractive business economics because the company can grow without massive ongoing investment. However, context matters — a company reducing its CapEx ratio might be under-investing and setting itself up for future problems. The ratio should be analyzed over time (a 5-year average is more meaningful than a single year) and compared to industry peers. Companies that consistently maintain low CapEx-to-revenue ratios while growing revenue tend to generate superior returns on invested capital and produce more free cash flow per dollar of revenue.
CapEx-to-Revenue Ratio Example
- 1Microsoft's CapEx-to-revenue ratio was about 15% in 2024, up significantly due to AI data center investments.
- 2A SaaS company with a 3% CapEx-to-revenue ratio is far more asset-light than a semiconductor fab at 30%.
- 3Investors compare CapEx-to-revenue across peers: AT&T at ~18% vs. Verizon at ~16% shows similar capital intensity.
Related Terms
Capital Expenditure (CapEx)
Funds spent by a company to acquire, upgrade, or maintain physical assets like property, buildings, equipment, or technology.
Revenue
The total amount of money a company earns from its business activities before any expenses are deducted, also called sales or top line.
Free Cash Flow (FCF)
The cash a company generates from operations after accounting for capital expenditures, representing money available for dividends, debt repayment, or reinvestment.
Asset Turnover Ratio
An efficiency ratio measuring how effectively a company uses its total assets to generate revenue, calculated as revenue divided by average total assets.
EBITDA (Earnings Before Interest, Taxes, Depreciation & Amortization)
A widely used profitability metric that strips out financing, tax, and non-cash capital costs to approximate operating cash generation.
Net Income
A company's total profit after all expenses, taxes, and costs have been deducted from revenue—the "bottom line" of the income statement.
Expand Your Financial Vocabulary
Explore 130+ financial terms with definitions, examples, and formulas
Browse Fundamental Analysis Terms