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Stock Ratios Calculator

Stock market ratio analysis. Free online Stock Ratios Calculator. Calculate stock ratios online — fast, accurate, mobile-friendly, no signup needed.

P/E ratio
20
Dividend yield
2%
P/B ratio
1.666667

Derivation

  1. ├── 01Givenprice = 50, eps = 2.5, div = 1, bv = 30
  2. ├── 02FormulaP/E ratio: e.price / e.eps
  3. ├── 03Substitutee.50 / e.2.5
  4. ├── 04Compute P/E ratio20
  5. ├── 05FormulaDividend yield: e.div / t × 100
  6. ├── 06Substitutee.1 / t × 100
  7. ├── 07Compute Dividend yield2
  8. ├── 08FormulaP/B ratio: e.price / e.bv
  9. ├── 09Substitutee.50 / e.30
  10. └── 10Compute P/B ratio1.666667
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 Stock Ratios Calculator

The Stock Ratios Calculator computes P/E ratio from 4 inputs: price ($), eps ($), dividend ($), book value ($). Stock market ratio analysis.

Quick calculators for the math that shouldn’t need a notepad — instant, accurate, private to your browser. The Stock Ratios Calculator sits in that toolkit — it stock market ratio analysis. 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

P/E ratio = e.price / e.eps | Dividend yield = e.div / t × 100 | P/B ratio = e.price / e.bv

Where

price
Price ($)
eps
EPS ($)
div
Dividend ($)
bv
Book value ($)
P/E ratio
Output value
Dividend yield
Output value
P/B ratio
Output value
§03Practical Example

Step-by-step walkthrough

Scenario

Apply the formula to a realistic set of inputs: Price ($) = 50, EPS ($) = 2.5, Dividend ($) = 1, Book value ($) = 30.

  1. 01Start by noting the input — Price ($): 50.
  2. 02Start by noting the input — EPS ($): 2.5.
  3. 03Start by noting the input — Dividend ($): 1.
  4. 04Start by noting the input — Book value ($): 30.
  5. 05Substitute these values into the formula: P/E ratio = e.price / e.eps | Dividend yield = e.div / t × 100 | P/B ratio = e.price / e.bv
  6. 06Compute P/E ratio: the calculator returns 20.
  7. 07Compute Dividend yield: the calculator returns 2.
  8. 08Compute P/B ratio: the calculator returns 1.66667.
  9. 09Cross-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 Stock 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

Price ($) halved

price = 25 (from 50)

Keep every other input at its default and halve the price ($). See how p/e ratio responds.

  1. 01New Price ($): 25
  2. 02Baseline P/E ratio: 20
  3. 03New P/E ratio: 10
  4. 04P/E ratio decreases by 50% → use this sensitivity to plan for real-world variation.
02 · PATTERN

Price ($) doubled

price = 100 (from 50)

Keep every other input at its default and double the price ($). See how p/e ratio responds.

  1. 01New Price ($): 100
  2. 02Baseline P/E ratio: 20
  3. 03New P/E ratio: 40
  4. 04P/E ratio increases by 100% → use this sensitivity to plan for real-world variation.
03 · PATTERN

EPS ($) halved

eps = 1.25 (from 2.5)

Keep every other input at its default and halve the eps ($). See how p/e ratio responds.

  1. 01New EPS ($): 1.25
  2. 02Baseline P/E ratio: 20
  3. 03New P/E ratio: 40
  4. 04P/E ratio increases by 100% → use this sensitivity to plan for real-world variation.
04 · PATTERN

EPS ($) doubled

eps = 5 (from 2.5)

Keep every other input at its default and double the eps ($). See how p/e ratio responds.

  1. 01New EPS ($): 5
  2. 02Baseline P/E ratio: 20
  3. 03New P/E ratio: 10
  4. 04P/E ratio 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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