Showing 58 calculators
T-Test Calculator - Free Statistical Hypothesis Testing
Perform one-sample, two-sample, and paired t-tests. Calculate t-statistic, p-value, confidence intervals with visual comparisons.
Recipe Scaling Calculator - Free Online Recipe Converter
Scale recipe ingredients up or down while maintaining perfect proportions. Convert servings, adjust batch sizes, and resize any recipe.
Cooking Time Converter - Free Temperature & Time Adjustment Calculator
Convert cooking times between different temperatures and methods. Adjust times for convection ovens, altitude changes, and different cooking techniques.
Food Cost Calculator - Free Restaurant Profit Margin Calculator
Calculate food costs, profit margins, and menu pricing. Essential for restaurants, catering, and food service businesses.
Kitchen Brigade Calculator - Free Restaurant Staffing Calculator
Calculate kitchen staff requirements for events, restaurants, and catering. Determine optimal chef, cook, and prep staff numbers.
Food Portion Calculator - Free Serving Size Calculator
Calculate proper food portions, serving sizes, and yields. Perfect for restaurants, catering, and meal planning.
Baking Conversion Calculator - Free Weight to Volume Converter
Convert between weight and volume measurements for baking ingredients. Essential for accurate recipe conversions.
Sample Size Calculator - Free Statistical Sample Size Calculator
Calculate the required sample size for surveys, experiments, and research studies. Determine statistical power and confidence levels.
P-Value Calculator - Free Statistical Significance Calculator
Calculate p-values from test statistics for z-tests, t-tests, chi-square, and F-tests. Determine statistical significance easily.
Effect Size Calculator - Free Cohen's d, r, and ฮทยฒ Calculator
Calculate effect sizes including Cohen's d, Pearson's r, eta squared, and more. Essential for research and meta-analysis.
Odds Ratio Calculator - Free Case-Control Study Calculator
Calculate odds ratios with confidence intervals for case-control studies. Essential for epidemiology and medical research.
Fraction to Decimal Calculator - Free Online Fraction Converter
Convert fractions to decimals instantly. Supports mixed numbers, improper fractions, and shows step-by-step solutions.