Debt-to-Equity & Interest Coverage Calculator
Calculate your Debt-to-Equity Ratio and Interest Coverage Ratio — key leverage metrics lenders check.
What this calculator does
Calculates two core leverage metrics lenders and investors check together: the Debt-to-Equity Ratio (how much of the business is debt-financed) and the Interest Coverage Ratio (how comfortably earnings cover the interest on that debt).
Who this is for
Business owners preparing for a loan application, investors assessing a company's financial risk, or finance students and analysts practicing standard leverage ratio calculations.
Methodology
Debt-to-Equity Ratio = Total Debt ÷ Total Equity. Measures how much of the business is financed by debt versus owner/shareholder capital.
Interest Coverage Ratio = EBIT ÷ Interest Expense. Measures how comfortably current earnings cover the interest cost of that debt.
Worked example
$800,000 total debt, $1,000,000 total equity, $300,000 EBIT, $60,000 annual interest expense: Debt-to-Equity = 800,000 ÷ 1,000,000 = 0.8 (conservative, equity-heavy financing). Interest Coverage = 300,000 ÷ 60,000 = 5x (comfortably above the 2-3x safety margin most lenders look for), meaning earnings could cover the interest expense five times over even if profits fell substantially.
Interpretation
A Debt-to-Equity ratio below 1.0 means equity funding exceeds debt funding — generally seen as conservative. Ratios above 2.0 indicate heavier reliance on debt, which increases financial risk but isn't necessarily a problem in capital-intensive or asset-heavy industries. Interest Coverage above 2-3x is generally considered a safe margin by lenders; below 1.5x, a business may struggle to service debt if earnings dip.
Debt vs. equity split
Run the calculator above to see the debt vs. equity proportion of total financing.
Common mistakes
- Ignoring industry context. A 2.0 Debt-to-Equity ratio might be alarming for a services business but routine for a real estate or utility company.
- Looking at leverage without checking coverage. A business can have moderate debt levels but still weak Interest Coverage if earnings are thin or volatile.
- Using book value instead of market value of equity. For some analyses, market value gives a more current picture, though book value (from financial statements) is the standard input for lending purposes.
- Treating a single snapshot as the full picture. Both ratios can shift significantly quarter to quarter — lenders typically look at the trend over several periods, not just one point-in-time calculation.
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Frequently Asked Questions
Why do lenders check both ratios instead of just one?
Debt-to-Equity shows overall balance sheet structure, but says nothing about whether current earnings can actually service that debt. Interest Coverage fills that gap — a business can look fine on one ratio and risky on the other, so lenders check both together for a complete risk picture.
What is a healthy Debt-to-Equity ratio?
Generally below 1.0-2.0 is considered conservative, though capital-intensive industries like utilities or real estate commonly operate with higher ratios.
What Interest Coverage Ratio do lenders want to see?
Most lenders look for at least 2-3x coverage, meaning EBIT covers interest expense two to three times over, as a safety margin against earnings volatility.
What's the difference between these two ratios?
Debt-to-Equity measures overall balance sheet leverage. Interest Coverage measures whether current earnings comfortably cover the interest cost of that debt.