Expected Frequency Calculator

Row Total: Column Total: Grand Total (Sample Size): Calculation Type: Contingency Table (Chi-Square Test)Probability DistributionBinomial DistributionPoisson Distribution Number of Trials: Probability (p): Calculate Reset Expected Frequency: Copy Formula Used: Copy Calculation: Copy Rounded Result: Copy Interpretation: Copy Formulas: Contingency Table: E = (Row Total × Column Total) / Grand Total Binomial: E = n × … Read more

Fourth Root Calculator (4th Sqrt)

Enter Number: Calculate Reset Fourth Root (⁴√): Copy Exact Form: Copy Decimal Form: Copy Exponential Form: Copy Verification: Copy Square Root of Square Root: Copy Formulas: ⁴√x = x^(1/4) ⁴√x = √(√x) Verification: (⁴√x)⁴ = x In mathematics, calculating the fourth root of a number can sometimes be challenging, especially with large or decimal numbers. … Read more

Constant of Proportionality Calculator

Variable X: Variable Y: Relationship Type: Direct Proportionality (Y = kX)Inverse Proportionality (Y = k/X) Calculate Reset Constant of Proportionality (k): Copy Equation: Copy Verification: Copy Decimal Form: Copy Fraction Form: Copy Formulas: Direct Proportionality: Y = kX, so k = Y/X Inverse Proportionality: Y = k/X, so k = Y × X In mathematics, … Read more

Angular Size Calculator

Object Size: Size Unit: Meters (m)Centimeters (cm)Millimeters (mm)Kilometers (km)Feet (ft)Inches (in) Distance: Distance Unit: Meters (m)Centimeters (cm)Millimeters (mm)Kilometers (km)Feet (ft)Inches (in)Astronomical Units (AU)Light Years (ly) Calculate Reset Angular Size (Degrees): Copy Angular Size (Arcminutes): Copy Angular Size (Arcseconds): Copy Angular Size (Radians): Copy Angular Size (Milliradians): Copy Formula: Angular Size (θ) = 2 × arctan(Object … Read more

RPM to Rads Calculator

RPM (Revolutions per Minute): Calculate Reset Radians per Second (rad/s): Copy Radians per Minute (rad/min): Copy Angular Velocity (ω): Copy Period (T) in seconds: Copy Frequency (Hz): Copy Formula: ω (rad/s) = RPM × (2π/60) ω (rad/s) = RPM × 0.10472 When dealing with rotational motion in physics, engineering, or machinery, it’s often necessary to … Read more

Dice Average Calculator

Number of Dice: Number of Sides per Die: Number of Rolls: Calculate Reset Average Result: Copy Theoretical Average: Copy Minimum Possible: Copy Maximum Possible: Copy Standard Deviation: Copy If you love board games, role-playing games, or any activity that involves dice, understanding the average results of dice rolls can be incredibly useful. The Dice Average … Read more

Error Bound Calculator (Simpsons Rule)

Lower Limit (a): Upper Limit (b): Number of Subintervals (n – must be even): Maximum Value of 4th Derivative (M₄): Function Examples (optional reference): Select function type for derivative suggestionPolynomial (degree 4 or higher)Exponential (e^x, e^(ax))Trigonometric (sin, cos, tan)Logarithmic (ln x, log x)Rational (1/x, 1/x²) Calculate Reset Error Bound (|E|): Copy Step Size (h): Copy … Read more

Common Ratio Calculator

The Common Ratio Calculator is a practical tool for students, teachers, mathematicians, and researchers to find the common ratio of a geometric sequence. The common ratio is a key element in geometric sequences, representing the constant factor between consecutive terms. Understanding and calculating it is essential in algebra, finance, physics, and computer science. This calculator … Read more

Distance Between 3 Points Calculator

The Distance Between 3 Points Calculator is a practical tool for students, engineers, architects, and researchers to compute distances between three points in a plane or in 3D space. Calculating these distances is crucial in geometry, physics, engineering designs, and navigation. This calculator simplifies the process, providing instant and precise results without manual formulas, helping … Read more

Pounds Per Square Inch Calculator

Force (F): lbs Area (A): sq insq ftsq cmsq m Alternative: Circular Area by Diameter: inchesfeetcmmetersmm Calculate Reset Pressure (PSI): Copy Pressure Conversions: Copy Force Analysis: Copy Area Analysis: Copy Pressure Classification: Copy PSI Formula and Conversions Formula: PSI = Force (lbs) / Area (sq in) 1 PSI = 6.895 kPa, 0.0689 bar, 51.715 mmHg … Read more