Stock Beta Calculator
Result
Stock Beta Calculator Calculate a stock's beta — a measure of how much it moves relative to the overall market. Beta is the covariance between the stock's returns and the market's returns divided by the variance of the market's returns. Enter those two fi — free online calculator.
Formula
- Stock Beta Calculator calculates its result from Covariance stock/market, Market variance. It uses the formula cov/var. Change any input to recalculate the result instantly.
- The main inputs are Covariance stock/market, Market variance. Enter them in the units and format shown in the calculator.
- Use monetary amounts, rates and time periods exactly as labeled; the result reflects the assumptions entered on this page.
- Changing any input above recalculates the result with the same calculation engine used by this page.
Example: Stock Beta
- Covariance stock/market: 0.018
- Market variance: 0.012
Using Covariance stock/market = 0.02, Market variance = 0.01, the calculated result is 2.
Sample result: Calculating…
Frequently asked questions
What does the Stock Beta calculate?
Stock Beta Calculator Calculate a stock's beta — a measure of how much it moves relative to the overall market. Beta is the covariance between the stock's returns and the market's returns divided by the variance of the market's returns. Enter those two fi — free online calculator.
Which values should I enter?
Enter Covariance stock/market, Market variance using the units and format shown beside each field.
What formula does this calculator use?
The calculator uses the following relationship: cov/var.
Why might my result differ from another source?
Results can differ when another source uses different units, rounding rules, conventions or assumptions. Compare the inputs and definitions before comparing results.
Does the result update automatically?
Yes. Changing an input updates the result using the same calculation engine shown on this page.