Gas Mileage Calculator Gas Mileage Calculator Calculate your vehicle’s fuel efficiency (MPG). * Enter distance (miles) and fuel used (gallons). Step 1: Enter Trip Details Distance Traveled (miles): Fuel Used (gallons): Calculate MPG Fuel Efficiency Result Miles per Gallon (MPG): New Calculation Calculation: MPG = Distance Traveled ÷ Fuel Used
Read MoreWater Usage Calculator Estimate your monthly water usage and cost. * Enter number of residents, daily usage (gallons), billing period (days), and cost per gallon. Step 1: Enter Household Data Number of Residents: Daily Usage per Person (gallons): Billing Period (days): Cost per Gallon ($): Example: $0.005 per gallon (half a cent per gallon). Calculate […]
Read MoreOur Age Calculator guide, available on FreeOnlineCalculators.net. enables you to easily calculate your age in years, months, and days based on your birth date. Whether you want to celebrate a birthday or track age milestones, this calculator is here to help. In this guide, you will learn how to use the calculator, the formulas it employs, and how […]
Read MoreUse this calculator to determine the confidence interval for a Binomial proportion ( p ). Input your number of trials ( n ), number of successes ( x ), and desired confidence level to compute the confidence interval. Binomial Probability Confidence Interval Calculator Binomial Confidence Interval Calculator Compute the confidence interval for the probability of […]
Read MoreNoncentral F-Distribution CDF Calculator Noncentral F-Distribution CDF Calculator Calculate the cumulative probability \( P(F \leq x) \) for the noncentral F-distribution. * Enter the F-value (\( x \)), numerator degrees of freedom (\( d_1 \)), denominator degrees of freedom (\( d_2 \)), and noncentrality parameter (\( \lambda \)). Step 1: Enter Parameters F-value, \( x […]
Read MorePost-hoc Statistical Power Calculator for Hierarchical Multiple Regression Post-hoc Statistical Power Calculator for Hierarchical Multiple Regression Total Sample Size (N): R² for Full Model: R² for Reduced Model: Significance Level (α): Calculate Power Reset
Read MoreCohen’s d Calculator for Student t-Test Cohen’s d Calculator for Student t-Test Calculate the standardized difference between two group means using: $$ s_p = \sqrt{\frac{(n_1-1)s_1^2+(n_2-1)s_2^2}{n_1+n_2-2}},\quad d=\frac{M_1-M_2}{s_p}. $$ * Enter the sample sizes, means, and standard deviations for both groups. Group 1 Parameters Sample Size, \( n_1 \): e.g., 30 Mean, \( M_1 \): e.g., 100 […]
Read MoreIndirect Effect Calculator for Mediation Models Indirect Effect Calculator for Mediation Models Calculate the indirect effect using the product-of-coefficients method: $$ \text{Indirect Effect} = a \times b $$ * Enter the path coefficient \( a \) (from the independent variable to the mediator) and \( b \) (from the mediator to the dependent variable). Step […]
Read MoreCohen’s f² Effect Size Calculator for Multiple Regression Cohen’s \( f^2 \) Effect Size Calculator In multiple regression, Cohen’s \( f^2 \) is calculated as: $$ f^2=\frac{R^2}{1-R^2}. $$ * Enter the \( R^2 \) value from your regression model (must be between 0 and 1). Step 1: Enter Regression \( R^2 \) Observed \( R^2 […]
Read MoreR² Calculator from Cohen’s \( f^2 \) Effect Size Given Cohen’s \( f^2 \) defined as $$ f^2=\frac{R^2}{1-R^2}, $$ the population \( R^2 \) is calculated as: $$ R^2=\frac{f^2}{1+f^2}. $$ * Enter Cohen’s \( f^2 \) (must be \( \ge 0 \)). Step 1: Enter Cohen’s \( f^2 \) Cohen’s \( f^2 \): e.g., 0.30 […]
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