Sample Size Calculator
Use BSure sample size calculator to define the right number of participants based on
population size, confidence level, and margin of error
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REQUIRED SAMPLE SIZE
278
To survey 1000 people with 5% margin at 95% confidence.
Ready to launch your survey?
Ready to launch your survey?
You know exactly how many responses you need. Now build and send your survey with BSure — AI-powered, beautifully branded, and built for results.
You know exactly how many responses you need. Now build and send your survey with BSure — AI-powered, beautifully branded, and built for results.
SSL Secured
Instant Setup
10,000+ Teams
Multi-language
SSL Secured
Instant Setup
10,000+ Teams
Multi-language
Why run your next survey on BSure?
Why run your next survey on BSure?
Why run your next survey on BSure?
The calculator is just the beginning. Here is what you unlock when you sign up.
The calculator is just the beginning. Here is what you unlock when you sign up.
The calculator is just the beginning. Here is what you unlock when you sign up.
Real-time Analytics
Watch responses roll in live. Filter, segment, and export instantly.
AI Survey Builder
Describe your goal and let AI generate a complete, balanced survey in seconds.
Real-time Analytics
Watch responses roll in live. Filter, segment, and export instantly.
Auto Translation
Launch one survey in 50+ languages without copying a single question.
Auto Translation
Launch one survey in 50+ languages without copying a single question.
Skip Logic & Branching
Show the right questions to the right people based on their answers.
Collaborative Workspaces
Invite teammates, assign roles, and review together — no seat limits on Pro.
Collaborative Workspaces
Invite teammates, assign roles, and review together — no seat limits on Pro.
AI Survey Builder
Describe your goal and let AI generate a complete, balanced survey in seconds.
Auto Translation
Launch one survey in 50+ languages without copying a single question.
Skip Logic & Branching
Show the right questions to the right people based on their answers.
Enterprise Security
SOC-2 aligned, encrypted at rest, with role-based access for your team.
Enterprise Security
SOC-2 aligned, encrypted at rest, with role-based access for your team.
Collaborative Workspaces
Invite teammates, assign roles, and review together — no seat limits on Pro.
Learn More About Sample Size
Learn More About Sample Size
What is sample size?
What is sample size?
How to calculate sample size?
How to calculate sample size?
What affects sample size?
What affects sample size?
What is a good sample size?
What is a good sample size?
What is a large sample size?
What is a large sample size?
How to choose the right sample size?
How to choose the right sample size?
Common mistakes to avoid
Common mistakes to avoid
Digital Solutions
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