I created these calculators back in 2007 and planned to give them as away freebie but for some reason they got seriously stuck on my hard drive for years. Just too busy to do anything with them. . Over time it pissed me off looking at the calculators while they were grinning and practically shouting at me “you’re a procrastinator” so At the moment I’ve published these calculators (more are coming): - OTO Sales Flow Simulator
- CPC Calculators
- CPM Calculators
- A/B Splittest Analyzer
- Membership Life Time value Calculator
- Solomailing Calculator
Enjoy! Peter P.S Be careful, it’s easy to become addicted to some of them |

## A/B Splittest Analyzer

With this tool, you can determine which is the best ad from an A/B split test. Just let your campaign run a for while and plug in the numbers to see if the difference is significant.

Calculator comes here.

How to interpret “**confidence**“:

0-90%: No meaning, continue testing

90-95%: Getting closer but still unsure, continue testing

95-97.5%: You are quite sure

97.5-100%: You are very sure

## Solo Mailing Calculator

This calculator helps you to estimate how many visitors you can expect from a solo mailing campaign and the estimated cost per visitor.

## Membership Life Time Value

This calculator helps you calculate the customer live time value (LTV) for a membership type of site. It also calculates how long an average customer will stay as a member.

## CPC Calculators

These calculators help you to calculate:

- Maximum CPC you can pay to reach a target ROI
- The ROI you can expect
- The minimum conversion rate required to reach a target ROI
- The minimum product price required to reach a target ROI

## CPM Calculator for Banners

The first calculator helps you predict the cost per visitor, total cost and the traffic volume you can expect from a banner ad campaign.

The other two calculators help you predict the maximum CPM you can pay and the minimum CTR you need to make a campaign profitable.