- Home
- Basic Math
- Percentage
- Percentage
- Percentage Increase
- Percentage Decrease
- Percentage of Percentage
- Decimal to Percentage
- Fraction to Percentage
- Geometry
Surface Area Calculators
- Finance
- Conversion
Distance Conversions
- Kilometer to Feet
- Kilometer to Meter
- Kilometer to Miles
- Kilometers to Nautical Miles
- Meters to Kilometer
- Meters to Feet
- Meters to Miles
- Meters to Yards
- Meters to Nautical Miles
- Feet to Miles
- Feet to Meters
- Feet to Yards
- Feet to Kilometer
- Miles to Kilometer
- Miles to Feet
- Miles to Meter
- Miles to Nautical Miles
- Miles to Yard
- Miles to Leagues
- Nautical Miles to Miles
- Nautical Miles to Kilometers
- Nautical Miles to Meters
- Yards to Meters
- Yards to Feet
- Yard to Miles
- Fathoms to Meters
- Fathoms to Feet
- Leagues to Miles
- Meters to Centimeters
- Meters to Millimeters
- Meters to Inches
- Centimeters to Millimeters
- Centimeters to Inches
- Centimeters to Feet
- Centimeters to Decimeters
- Centimeters to Yards
- Centimeters to Meters
- Inches to Centimeters
- Inches to Millimeters
- Inches to Feet
- Inches to Yards
- Inches to Meters
- Feet to Centimeters
- Feet to Inches
- Millimeters to Meters
- Millimeters to Inches
- Millimeters to Centimeters
- Millimeters to Micrometers
- Millimeters to Nanometers
- Decimeters to Centimeters
- Micrometers to Millimeters
- Micrometers to Nanometers
- Nanometers to Millimeters
- Nanometers to Micrometers
- Yards to Centimeters
- Yard to Inches
- Square Feet to Acres
- Acres to Square Feet
- Acres to Square Meters
- Acres to Square Miles
- Square Meters to Square Feet
- Square Meters to Acres
- Square Meters to Hectares
- Square Meters to Square Miles
- Square Miles to Square Kilometers
- Square Miles to Square Feet
- Square Miles to Acres
- Square Miles to Hectares
- Square Miles to Square Meters
- Square Kilometers to Square Miles
- Square Feet to Square Meters
- Square Feet to Square Miles
- Square Feet to Hectares
- Other
- Age
- Day of Week
- Days Between
- Sine
- Cosine
- Tangent
- Date to Roman Numerals
- Dog age calculator
- Cat age calculator
- Military time calculator
- Support
- Buy me a coffee
Hive Calculator- Home
Geometry
- Area
- Rectangle Area
- Square Area
- Circle Area
- Semicircle Area
- Triangle Area
- Trapezoid Area
- Parallelogram Area
- Sector Area
- Rhombus Area
- Kite Area
- Ellipse Area
- Regular Pentagon Area
- Regular Hexagon Area
- Regular Octagon Area
- Volume
- Sphere Volume
- Cone Volume
- Cube Volume
- Cylinder Volume
- Capsule Volume
- Rectangular Box Volume
- Conical Frustum Volume
- Ellipsoid Volume
- Hemisphere Volume
- Hollow Cylinder Volume
- Square Pyramid Volume
- Triangular Prism Volume
- Surface Area
- Sphere Surface Area
- Cube Surface Area
- Cylinder Surface Area
- Cone Surface Area
- Rectangular Box Surface Area
- Hemisphere Surface Area
- Square Pyramid Surface Area
- Capsule Surface Area
- Conical Frustum Surface Area
- Hollow Cylinder Surface Area
- Triangular Prism Surface Area
- Ellipsoid Surface Area
- Perimeter
Finance
Conversion
- Number Systems
- Decimal to Binary
- Decimal to Hex
- Decimal to Octal
- Decimal to Fraction
- Decimal to Time
- Binary to Decimal
- Binary to Hex
- Binary to Octal
- Hex to Decimal
- Hex to Binary
- Hex to Octal
- Octal to Decimal
- Octal to Binary
- Octal to Hex
- Fraction to Decimal
- Roman Numerals to Decimal
- Distance Conversions
- Kilometer to Feet
- Kilometer to Meter
- Kilometer to Miles
- Kilometers to Nautical Miles
- Meters to Kilometer
- Meters to Feet
- Meters to Miles
- Meters to Yards
- Meters to Nautical Miles
- Feet to Miles
- Feet to Meters
- Feet to Yards
- Feet to Kilometer
- Miles to Kilometer
- Miles to Feet
- Miles to Meter
- Miles to Nautical Miles
- Miles to Yard
- Miles to Leagues
- Nautical Miles to Miles
- Nautical Miles to Kilometers
- Nautical Miles to Meters
- Yards to Meters
- Yards to Feet
- Yard to Miles
- Fathoms to Meters
- Fathoms to Feet
- Leagues to Miles
- Meters to Centimeters
- Meters to Millimeters
- Meters to Inches
- Centimeters to Millimeters
- Centimeters to Inches
- Centimeters to Feet
- Centimeters to Decimeters
- Centimeters to Yards
- Centimeters to Meters
- Inches to Centimeters
- Inches to Millimeters
- Inches to Feet
- Inches to Yards
- Inches to Meters
- Feet to Centimeters
- Feet to Inches
- Millimeters to Meters
- Millimeters to Inches
- Millimeters to Centimeters
- Millimeters to Micrometers
- Millimeters to Nanometers
- Decimeters to Centimeters
- Micrometers to Millimeters
- Micrometers to Nanometers
- Nanometers to Millimeters
- Nanometers to Micrometers
- Yards to Centimeters
- Yard to Inches
- Square Feet to Acres
- Acres to Square Feet
- Acres to Square Meters
- Acres to Square Miles
- Square Meters to Square Feet
- Square Meters to Acres
- Square Meters to Hectares
- Square Meters to Square Miles
- Square Miles to Square Kilometers
- Square Miles to Square Feet
- Square Miles to Acres
- Square Miles to Hectares
- Square Miles to Square Meters
- Square Kilometers to Square Miles
- Square Feet to Square Meters
- Square Feet to Square Miles
- Square Feet to Hectares
- Text Conversions
- Other Conversions
Ellipse Perimeter Calculator
Enter the semi-major and semi-minor axes to calculate the perimeter (Ramanujan approximation).