How to use this calculator
- Enter interest-bearing debt, book equity.
- Choose a display currency, then select Calculate. Results also update after a brief pause while you edit.
- Read the result with the assumptions below. Export details or save a second scenario to compare your choices.
Formula and method
Debt-to-capital = debt / (debt + equity) × 100%.
Assumptions and limitations
Both components must use one consistent book-value or market-value basis.
Worked example
With interest-bearing debt = 100000, book equity = 150000, debt-to-capital ratio is approximately 40%.
What the result means
Use this to inspect capital structure rather than near-term payment capacity.
Common questions
How should I interpret debt-to-capital ratio?
Use this to inspect capital structure rather than near-term payment capacity.
What should I check before using this result?
Both components must use one consistent book-value or market-value basis.
Methodology and transparency
Calculation specification reviewed on 2026-10-14. Mathematical implementation is tested against independent reference fixtures. This does not imply review by a licensed financial professional. Read the testing and precision policy.