Survey Research
Survey research calculators for margin of error, response rate, Likert scale, NPS, conjoint analysis, and sampling.
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Conjoint Analysis Calculator
Calculate the relative importance of product or service attributes from conjoint analysis utility ranges. Determine which features matter most to your respondents.
Inter-Rater Reliability Calculator
Calculate Cohen's kappa coefficient to measure agreement between two raters beyond what would be expected by chance. Get an interpretation of your reliability score.
Likert Scale Analyzer
Analyze 5-point Likert scale survey responses to get mean, median, standard deviation, and top/bottom-box percentages with a distribution chart.
Margin of Error Calculator
Calculate the margin of error for your survey results based on sample size, confidence level, population size, and expected proportion.
Net Promoter Score Calculator
Calculate your Net Promoter Score (NPS) from survey responses. Enter the count of promoters, passives, and detractors to see your score and classification.
Weighting Calculator
Calculate post-stratification weights to adjust your survey sample to match population proportions. See the weight for each stratum and overall weighting efficiency.
Quota Sampling Calculator
Calculate the number of survey responses needed from each population stratum using proportional quota sampling. Ensures your sample mirrors the population composition.
Sampling Frame Calculator
Calculate the design effect and effective sample size for cluster sampling designs. Understand how intraclass correlation and cluster size reduce your statistical power.
Survey Cost Estimator
Estimate the total cost of your survey project including recruitment, incentives, platform fees, and analysis time. See a breakdown of where your budget goes.
Survey Response Rate Calculator
Determine how many survey invitations you need to send to achieve your target number of completed responses, accounting for response and completion rates.