UTM Campaign URL Builder
Add encoded UTM campaign parameters to a valid destination URL while preserving unrelated query parameters.
GEAR LIBRARY
Ads & Analytics
Calculate campaign ratios from your own data with explicit formulas and no connection to ad accounts or analytics platforms.
CTR Calculator
Calculate click-through rate from clicks and impressions.
CPC Calculator
Calculate average cost per click from spend and clicks.
CPM Calculator
Calculate cost per one thousand impressions.
ROAS Calculator
Calculate return on ad spend from attributed revenue and advertising cost.
Conversion Rate Calculator
Calculate the percentage of visits or leads that completed a defined conversion.
A/B Test Sample Size Estimator
Estimate per-variant sample size for two proportions from a baseline rate and minimum relative uplift.