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Debt Ratios Calculator

Compute debt financial ratios. Free online Debt Ratios Calculator. Calculate debt ratios online — fast, accurate, mobile-friendly, no signup needed.

Debt-to-equity
0.5
Debt-to-income
66.6667%

Derivation

  1. ├── 01Givendebt = 50000, equity = 100000, income = 75000
  2. ├── 02FormulaDebt-to-equity: e.debt / e.equity
  3. ├── 03Substitutee.50000 / e.100000
  4. ├── 04Compute Debt-to-equity0.5
  5. ├── 05FormulaDebt-to-income: e.debt / e.income × 100
  6. ├── 06Substitutee.50000 / e.75000 × 100
  7. └── 07Compute Debt-to-income66.666667
Did you know?

Ratios appear in the earliest Greek mathematics (Eudoxus, 4th century BCE) as a way to compare incommensurable lengths without a concept of irrational numbers.

§01What is

Understanding the Debt Ratios Calculator

The Debt Ratios Calculator computes Debt-to-equity from 3 inputs: total debt ($), total equity ($), annual income ($). Compute debt financial ratios.

Quick calculators for the math that shouldn’t need a notepad — instant, accurate, private to your browser. The Debt Ratios Calculator sits in that toolkit — it compute debt financial ratios. Enter your numbers above and the result updates instantly; every step of the math is shown in the Derivation panel so you can see exactly how the answer was reached.

§02The Formula

How it’s calculated

Debt-to-equity = e.debt / e.equity | Debt-to-income = e.debt / e.income × 100

Where

debt
Total debt ($)
equity
Total equity ($)
income
Annual income ($)
Debt-to-equity
Output value
Debt-to-income
Output value
§03Practical Example

Step-by-step walkthrough

Scenario

Apply the formula to a realistic set of inputs: Total debt ($) = 50000, Total equity ($) = 100000, Annual income ($) = 75000.

  1. 01Start by noting the input — Total debt ($): 50000.
  2. 02Start by noting the input — Total equity ($): 100000.
  3. 03Start by noting the input — Annual income ($): 75000.
  4. 04Substitute these values into the formula: Debt-to-equity = e.debt / e.equity | Debt-to-income = e.debt / e.income × 100
  5. 05Compute Debt-to-equity: the calculator returns 0.5.
  6. 06Compute Debt-to-income: the calculator returns 66.6667.
  7. 07Cross-check the answer by opening the Derivation panel above — every line of math is shown so you can follow the computation end-to-end.
§04Variants

Common Debt Ratios Problems

The formula gets rearranged depending on which variable you need. Here are the patterns you’ll run into in the real world — find the one that matches your problem and follow the worked steps.

01 · PATTERN

Total debt ($) halved

debt = 25000 (from 50000)

Keep every other input at its default and halve the total debt ($). See how debt-to-equity responds.

  1. 01New Total debt ($): 25000
  2. 02Baseline Debt-to-equity: 0.5
  3. 03New Debt-to-equity: 0.25
  4. 04Debt-to-equity decreases by 50% → use this sensitivity to plan for real-world variation.
02 · PATTERN

Total debt ($) doubled

debt = 100000 (from 50000)

Keep every other input at its default and double the total debt ($). See how debt-to-equity responds.

  1. 01New Total debt ($): 100000
  2. 02Baseline Debt-to-equity: 0.5
  3. 03New Debt-to-equity: 1
  4. 04Debt-to-equity increases by 100% → use this sensitivity to plan for real-world variation.
03 · PATTERN

Total equity ($) halved

equity = 50000 (from 100000)

Keep every other input at its default and halve the total equity ($). See how debt-to-equity responds.

  1. 01New Total equity ($): 50000
  2. 02Baseline Debt-to-equity: 0.5
  3. 03New Debt-to-equity: 1
  4. 04Debt-to-equity increases by 100% → use this sensitivity to plan for real-world variation.
04 · PATTERN

Total equity ($) doubled

equity = 200000 (from 100000)

Keep every other input at its default and double the total equity ($). See how debt-to-equity responds.

  1. 01New Total equity ($): 200000
  2. 02Baseline Debt-to-equity: 0.5
  3. 03New Debt-to-equity: 0.25
  4. 04Debt-to-equity decreases by 50% → use this sensitivity to plan for real-world variation.
§05FAQ

Frequently asked questions

Yes. The calculator implements the standard formula as documented and returns exact floating-point results. No approximations are used unless noted in the formula.
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