Keyword Density Calculator

Keyword density is the percentage of words in a text matching a target keyword. The optimal SEO range is 1–3%

The calculator uses the standard published formula for keyword density. Results are accurate to the precision of the inputs you provide. For financial, medical, or legal decisions, always verify with a qualified professional.

This calculator works with inches, percentages. You can enter values in the units shown — the calculator handles all conversions internally.

The core formula is: Density = (Keyword count / Total word count) × 100. Each step in the calculation is shown so you can verify the result manually.