Reach Calculator

Calculating Reach

target population to participants

>>> Ideas about finding numbers for estimates

As you tackle REACH issues, there are two important questions to ask:

1) What percent of the target population are you reaching? (Use the calculator to get some answers.)

2) Are your participants the people you need to reach? In other words, are the participants representative of your target population?

>>> New calculators to be added soon!

There are ways to calculate representativeness and we will post calculators when they are available. Please check back!

Enter your numbers without commas:

Estimated target population [y]

Estimated number exposed to recruitment [a]

Actual number who respond to recruitment [b]

Actual number who are eligible [c]

Actual number who participate [d]

% of target who respond to recruitment

% of eligible who participate

% of REACH into target population

% excluded from study

% participation among eligible

Clear form and start over: