Measure area, volume, circle circumference, triangle sides and angles, square footage, and density without working through formulas by hand.
Calculators in this category
- Triangle Calculator — Calculate triangle sides, angles, area, and perimeter.
- Area Calculator — Measure area for common 2D shapes.
- Volume Calculator — Measure volume for common 3D shapes.
- Circle Calculator — Find radius, diameter, area, and circumference from one known value.
- Square Footage Calculator — Estimate floor or wall area for rooms and surfaces.
- Density Calculator — Solve for density, mass, or volume when two values are known.
- Cone Volume & Surface Area Calculator — Compute volume, slant height, lateral and total surface area of any right circular cone in seconds.
- Cylinder Volume & Surface Area Calculator — Compute volume, lateral and total surface area of any right circular cylinder from radius and height.
- Sphere Volume & Surface Area Calculator — Compute volume, surface area, circumference and diameter of any sphere from just the radius.
- Distance Calculator — Straight-line distance in km and miles — Euclidean for 2D coordinates or Haversine for latitude and longitude.
- Right Triangle Calculator — Enter any two sides of a right triangle — the calculator finds the third side, both acute angles, area, and perimeter.
- Surface Area Calculator — Total outer area of a cube, box, cylinder, sphere, or cone — pick the shape, enter dimensions, get the formula and result in square units.
- Capsule Volume Calculator — Volume and surface area of a capsule — cylinder plus two hemispherical end caps from radius and cylinder length.
- Hemisphere Calculator — Volume and surface area of a hemisphere (half-sphere) from radius — curved area plus optional flat base.
- Law of Cosines Calculator — Find a missing side or angle with the law of cosines — SAS (two sides + included angle) or SSS (three sides).
- Law of Sines Calculator — Solve any oblique triangle with the law of sines — enter two angles and a side, or all three sides.
- Midpoint Calculator — Find the midpoint between two (x, y) points — average the coordinates and see the segment length.
- Parallelogram Calculator — Area and optional perimeter of a parallelogram from base, height, and slant side.
- Rectangle Calculator — Area, perimeter, diagonal, and aspect ratio of a rectangle from length and width.
- Rectangular Prism Calculator — Volume and surface area of a box (rectangular prism) from length, width, and height.
- Regular Polygon Area Calculator — Area, perimeter, apothem, and circumradius of any regular polygon from its side count and side length.
- Rhombus Calculator — Area, side length, and perimeter of a rhombus from its two diagonal lengths.
- Square Pyramid Calculator — Volume and surface area of a square-base pyramid from base side and vertical height.
- Tube Volume Calculator — Wall volume of a hollow cylinder (tube or pipe) from outer radius, inner radius, and height.
- Annulus Calculator — Find the area between two concentric circles from outer and inner radius.
- Conical Frustum Calculator — Volume and surface area of a truncated cone from top radius, bottom radius, and height.
- Pyramid Frustum Calculator — Volume and surface area of a truncated square pyramid from top side, bottom side, and height.
- Stadium Calculator — Area and perimeter of a stadium shape — rectangle plus two semicircles.
- Triangular Prism Calculator — Volume and surface area of a triangular prism from base, triangle height, and prism length.