THE NUMORIX GUIDE
How to use the Dividend Calculator
Last reviewed September 14, 2026
What this calculator does
The engine finds whole shares as floor(investment / price per share).
Formula and method
The engine finds whole shares as floor(investment / price per share). Annual dividend yield is annual dividend per share / price per share x 100, annual dividend income is whole shares x annual dividend per share, and yield on cost is that income / total investment x 100.
Variables and inputs
Enter Investment, Price per Share, and Annual Dividend per Share. Dollar amounts are per the labels, and the engine intentionally floors the share count rather than allowing fractional shares. Any cash left after buying whole shares remains in the investment denominator for yield on cost.
Worked example
For a $10,000 investment, $150 share price, and $6 annual dividend per share, shares = floor(10,000 / 150) = 66. Dividend income is 66 x $6 = $396 per year; per-share yield is 6/150 = 4.00%, while yield on the full $10,000 cash investment is 396/10,000 = 3.96%.
How to interpret the result
The per-share yield compares the dividend with the current share price. The income result reflects only the whole shares the route can buy, and yield on cost reflects the entered cash amount, including the uninvested remainder when the investment is not an exact multiple of the price.
Common mistakes to avoid
Use the annual dividend per share, not the quarterly amount, unless you multiply it by the number of payments. Do not assume the engine buys fractional shares, and do not confuse yield on the purchase cash with a yield based on a different market value.
Assumptions and limitations
The model assumes a constant dividend and price, excludes taxes, fees, dividend reinvestment, fractional shares, withholding, and price changes, and does not test whether the dividend is sustainable. A displayed yield is not a promise that the company will maintain or increase its payout.