Debt-to-Capital Ratio Calculator

Quick answer

The debt-to-capital ratio calculator works out the share of a company's capital (interest-bearing debt plus shareholders' equity) that comes from debt.

$
$
Debt to capital ratio
—
As a percentage
— %
Debt to equity ratio
—

This ratio is a common leverage measure in credit analysis and loan covenants. Values above about 0.6 indicate high leverage for most industries.

How to use the Debt-to-Capital Ratio Calculator

  1. Interest-bearing debt
  2. Shareholders’ equity

Results update as you type, and every field accepts the units shown in its menu.

How it works

Enter interest-bearing debt and shareholders’ equity.

Tips

  • Check whether rates are quoted annually, semi-annually or per period.
  • Bond prices and yields move in opposite directions – a higher yield means a lower price.
  • Use the bond’s clean price (without accrued interest) for yield calculations.
  • Credit ratios are most useful when tracked over several years.

Common mistakes to avoid

  • Confusing the coupon rate with the yield.
  • Using the face value instead of the market price.
  • Forgetting that callable bonds may be redeemed before maturity.

Inputs explained

Field What to enter
Interest-bearing debt Amount in your currency
Shareholders’ equity Amount in your currency

What each result means

  • Debt to capital ratio = [Interest-bearing debt]÷([Interest-bearing debt] + [Shareholders’ equity])
  • As a percentage = [Debt to capital ratio]×100
  • Debt to equity ratio = [Interest-bearing debt]÷[Shareholders’ equity]

Example values

How the main result changes when Interest-bearing debt changes and everything else stays at the example values above:

Interest-bearing debt Debt to capital ratio
200,000 0.25
300,000 0.333
400,000 0.4
500,000 0.455
600,000 0.5
800,000 0.571

Formula

Debt-to-capital = interest-bearing debt ÷ (interest-bearing debt + shareholders' equity)

Worked example

Inputs — Interest-bearing debt: $400,000; Shareholders' equity: $600,000.
Results — Debt to capital ratio = 0.4; As a percentage = 40 %; Debt to equity ratio = 0.67.

Frequently asked questions

What is a good debt-to-capital ratio?

Below 0.5 is generally comfortable.

What counts as debt?

Short- and long-term interest-bearing debt, including leases.

How is it related to D/E?

D/C = D/E ÷ (1 + D/E).

What formula does the Debt-to-Capital Ratio Calculator use?

Debt-to-capital = interest-bearing debt ÷ (interest-bearing debt + shareholders' equity).

Sources

  1. Corporate Finance Institute – financial ratios

Cite this calculator

Speedy Calculator. (2026). Debt-to-Capital Ratio Calculator. Speedy Calculator. https://speedycalculator.com/calculators/finance/debt-to-capital/