How to Use the Interest Coverage Ratio Calculator
The interest coverage ratio divides operating income (EBIT) by interest expense to show how many times over a year of operating profit covers a year of interest. Lenders and bond covenants lean on it heavily when judging balance-sheet health.
A ratio of 1x is the break-even point where operating income exactly equals interest. Below 1x, operations alone do not service the debt. Many credit agreements set a floor somewhere between 1.5x and 3x, so treat those thresholds as a range rather than a single rule.
Entering depreciation and amortization adds an EBITDA-based coverage ratio. Because depreciation is a non-cash charge, capital-intensive businesses often look at this version to judge cash available for debt service.
With zero interest expense the division is undefined, so no ratio is shown; for a debt-free business, operating margin and cash flow are the more useful measures. The output here reflects only the figures entered โ confirm them against audited statements and your loan terms.
Frequently Asked Questions
It is not recommended. Net income already has interest and taxes deducted, so interest would be counted twice. Use the operating income line from the income statement to match the standard definition of the ratio.
Not from one year alone. A large capital project or a cyclical downturn can push it down temporarily. Several consecutive years below 1x is what lenders usually treat as a warning sign, so read the trend and cash flow together.