Dividend yield tells you how much cash income a stock pays out each year relative to its price, which is the key number for comparing income investments. Enter the annual dividend per share and the current share price, and this calculator divides one by the other to give the yield as a percentage. Add the number of shares you hold or plan to buy and it also works out your total annual dividend income and the cost of that position. A higher yield means more income per dollar invested, though a very high yield can sometimes signal a falling price rather than a great deal, so use it alongside other checks. This is handy for building an income portfolio or comparing two dividend stocks. All math runs locally in your browser.