Free Calculators

Yamane's sample size calculator & formula

January 8, 2026 3 min read

Yamane’s Sample Size Calculator

Cohen's d calculator and formula

September 4, 2025 7 min read

Cohen’s d Effect Size Calculator and Formula

Effect Size Calculator

July 5, 2025 10 min read

Effect Size Calculator: Supports Cohen’s d, Hedges’ g, Eta Squared, Partial Eta Squared, Odds Ratio, and Cramér’s V

Sample Size Calculator - This combines Slovin's, Cochran's and Yamane in one calculator

June 8, 2025 6 min read

Sample Size Calculator: Slovin’s, Cochran’s & Yamane’s (All-in-One)

Margin of Error Calculator | MOE Calculator

April 16, 2025 7 min read

Margin of Error Calculator

Cochran's sample size calculator & formula

April 1, 2025 6 min read

Cochran’s Sample Size Calculator

Slovin's sample size calculator

March 26, 2025 3 min read

Slovin’s Formula Calculator