Quick check
What is a percentage of a number?
Useful for working out amounts like 12% of budget or 18% of total conversions.
Simple percentage tools for quick marketing math.
Use the percentage change calculator for campaign reporting, or check common formulas and definitions when you need a fast refresher.
Choose the calculation you need
Comparison
What percent is one number of another?
Helpful when checking how much of total traffic, spend, or leads came from one source.
Campaign performance
What is the percentage increase or decrease?
Best for marketers tracking movement between old and new values such as CTR, CPL, revenue, or conversions.