Numbers
- Scientific Calculator
Advanced calculator with math functions.
- Decimal to Percent Calculator
Easily convert decimals into percentages.
- Fraction to Percent Calculator
Easily convert fractions into percentages.
- Percent Change Calculator
Calculate change between two numbers.
- Rate of Change Calculator
Calculate the average rate of change for two numbers.
- Aspect Ratio Calculator
Find the simplified aspect ratio of any width and height.
- Slope Calculator
Find slope, y-intercept and line equation from two points.
- GCF & LCM Calculator
Greatest common factor and least common multiple.
- Ratio Calculator
Solve, simplify and scale ratios.
- Quadratic Equation Calculator
Solve ax² + bx + c = 0 with the quadratic formula.
- Mean, Median & Mode Calculator
Find the mean, median, mode, and range of a list of numbers.
- Standard Deviation Calculator
Calculate population or sample standard deviation and variance.
Geometry
- Area of a Circle Calculator
Calculate the area of a circle.
- Circumference Calculator
Calculate the circumference of a circle.
- Radius of a Circle Calculator
Calculate the radius of a circle.
- Square Footage Calculator
Find the area of a room or lot in sq ft, sq m, sq yd or sq in.
- Volume Calculator
Calculate the volume of a shape.
- Pythagorean Theorem Calculator
Find any side of a right triangle using a² + b² = c².