Touch or click the bolded titles below to visit the respective websites.
Survey Monkey Sample Size Calculator: A straightforward tool from SurveyMonkey to determine the sample size needed for surveys based on population, confidence level, and margin of error.
Check Market: An easy-to-use calculator that helps estimate sample sizes for market research, with options to adjust confidence and error margins.
Survey System: A detailed calculator offering sample size and confidence interval calculations, widely used for survey planning.
Raosoft: A popular tool for calculating sample sizes, featuring inputs for margin of error, confidence level, and population size.
Calculator.net: A versatile online calculator that computes sample size with clear explanations and customizable parameters.
Qualtrics: Provides a sample size calculator alongside a blog post explaining the methodology, ideal for research planning.
Good Calculator: A simple, free tool to calculate sample sizes, with options for confidence level, margin of error, and population proportion.
Questionpro: A user-friendly calculator designed for survey research, offering quick sample size estimates based on standard statistical inputs.
Sample Size.net: A clean, no-frills calculator for determining sample sizes, with options for finite and infinite populations.
Creative Research Systems: Another reliable tool from Survey System, offering sample size calculations with detailed statistical inputs.
Stats Kingdom: A comprehensive calculator that includes sample size estimation along with confidence interval outputs.
Daniel Soper Sample Size Calculator: A free tool from a trusted statistics resource, designed for quick and accurate sample size calculations.