Enter the total number of cache hits and the total number of cache misses into the Hit Ratio Calculator. The calculator will evaluate and display the Hit Ratio.

## Hit Ratio Formula

The following formula is used to calculate the Hit Ratio.

HITR = H / (H+M) * 100
• Where HITR is the Hit Ratio (%)
• H is the total number of cache hits
• M is the total number of cache misses

To calculate a hit ratio, divide the number of hits by the sum of the number of hits and misses, then multiply by 100.

## How to Calculate Hit Ratio?

The following example problems outline how to calculate Hit Ratio.

Example Problem #1:

1. First, determine the total number of cache hits.
• The total number of cache hits is given as: 30.
2. Next, determine the total number of cache misses.
• The total number of cache misses is provided as: 15.
3. Finally, calculate the Hit Ratio using the equation above:

HITR = #H / (#H+#M) * 100

The values given above are inserted into the equation below and the solution is calculated:

HITR =30 / (30+15) * 100 = 66.667 (%)

Example Problem #2:

For this problem, the variables required are provided below:

total number of cache hits = 160

total number of cache misses = 14