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Geometry & Measurement
Browse 49 working calculators for geometry & measurement. Every tool shows a live result, its calculation steps, and the sources behind the method.
Geometry
49 calculators
Square Footage CalculatorCalculates floor or wall area for rectangular, square, round, triangular, trapezoidal or elliptical spaces, adds a waste allowance and estimates material quantity and cost.Square Foot Estimate CalculatorCalculates floor or wall area for rectangular, square, round, triangular, trapezoidal or elliptical spaces, adds a waste allowance and estimates material quantity and cost.Cylinder Volume Formula CalculatorComputes volume, surface area, capacity, weight and partial-fill volume for solid or hollow cylinders and cylindrical tanks.Distance CalculatorComputes the distance and midpoint between two points in the Cartesian plane or in 3D space, using the Euclidean, Manhattan, Chebyshev or Minkowski metric.Finding Slope CalculatorFinds the slope of a line from two points, a rise and run, an angle or a percent grade, then returns the slope-intercept, point-slope and standard forms plus the parallel and perpendicular slopes.Volume CalculatorVolume, surface area, lateral area and weight for 19 standard solids: prisms, pyramids, cylinders, cones, spheres, Platonic solids, tori, ellipsoids, caps and capsules.Acreage CalculatorCalculates the area and perimeter of any named plane shape - square, rectangle, triangle, parallelogram, rhombus, kite, trapezoid, circle, semicircle, ellipse, annulus, sector, segment or regular polygon - in any length unit, with the result convertible to any area unit.Mapping CalculatorComputes the shortest surface distance and the initial and final bearings between two latitude/longitude points using the haversine formula, the spherical law of cosines, an equirectangular approximation or Vincenty’s inverse solution on the WGS84 ellipsoid.Hypotenuse Theorem CalculatorSolves a right triangle from any two of leg a, leg b, hypotenuse, an acute angle, the area or the perimeter, returning all sides, angles, area, altitude to the hypotenuse, inradius and circumradius.Cf CalculatorTurns measured dimensions (or an area and a depth) into cubic feet, cubic yards, cubic metres, litres and gallons, with quantity, waste allowance, bag count and weight.cu Feet CalculatorTurns measured dimensions (or an area and a depth) into cubic feet, cubic yards, cubic metres, litres and gallons, with quantity, waste allowance, bag count and weight.Right Angled Triangle CalculatorSolves a right triangle from any two of leg a, leg b, hypotenuse, an acute angle, the area or the perimeter, returning all sides, angles, area, altitude to the hypotenuse, inradius and circumradius.Triangle CalculatorSolves any triangle from three known measurements (SSS, SAS, ASA, AAS or SSA), returning every side, angle, altitude, median, area, inradius and circumradius.cu Yard CalculatorTurns measured dimensions (or an area and a depth) into cubic feet, cubic yards, cubic metres, litres and gallons, with quantity, waste allowance, bag count and weight.Trig CalculatorEvaluates sine, cosine, tangent, their reciprocals and hyperbolic partners, or inverts any of them, and reports all six circular functions of the resulting angle with its quadrant, reference angle and exact unit-circle value.Area Circles CalculatorComputes radius, diameter, circumference and area of a circle from any one of them, plus arc length, chord, sector area, segment area and sagitta for a given central angle.Circumference CalculatorComputes radius, diameter, circumference and area of a circle from any one of them, plus arc length, chord, sector area, segment area and sagitta for a given central angle.Formula Cylinder CalculatorComputes volume, surface area, capacity, weight and partial-fill volume for solid or hollow cylinders and cylindrical tanks.Aspect Ratio CalculatorReduces a width and height to its simplest aspect ratio, resizes a resolution while preserving that ratio, derives physical screen width and height from a diagonal, fits content into a bounding box, and reports pixel density.Hypotenuse CalculatorSolves a right triangle from any two of leg a, leg b, hypotenuse, an acute angle, the area or the perimeter, returning all sides, angles, area, altitude to the hypotenuse, inradius and circumradius.Cir CalculatorComputes radius, diameter, circumference and area of a circle from any one of them, plus arc length, chord, sector area, segment area and sagitta for a given central angle.Surface Area CalculatorVolume, surface area, lateral area and weight for 19 standard solids: prisms, pyramids, cylinders, cones, spheres, Platonic solids, tori, ellipsoids, caps and capsules.Midpoint CalculatorComputes the distance and midpoint between two points in the Cartesian plane or in 3D space, using the Euclidean, Manhattan, Chebyshev or Minkowski metric.Tank Volume CalculatorComputes volume, surface area, capacity, weight and partial-fill volume for solid or hollow cylinders and cylindrical tanks.Triangle Area CalculatorCalculates the area and perimeter of any named plane shape - square, rectangle, triangle, parallelogram, rhombus, kite, trapezoid, circle, semicircle, ellipse, annulus, sector, segment or regular polygon - in any length unit, with the result convertible to any area unit.How Perimeter CalculatorComputes area, perimeter, apothem, circumradius, interior and exterior angles and diagonal count for a regular n-sided polygon, or the shoelace area, perimeter and centroid of an irregular polygon given by its vertex coordinates.Pipe Volume CalculatorComputes volume, surface area, capacity, weight and partial-fill volume for solid or hollow cylinders and cylindrical tanks.Sphere Volume CalculatorSolves a sphere completely from any one of radius, diameter, circumference, surface area or volume, with capacity and weight.Volume Tube CalculatorComputes volume, surface area, capacity, weight and partial-fill volume for solid or hollow cylinders and cylindrical tanks.Yardage CalculatorCalculates floor or wall area for rectangular, square, round, triangular, trapezoidal or elliptical spaces, adds a waste allowance and estimates material quantity and cost.Convert Circumference Diameter CalculatorComputes radius, diameter, circumference and area of a circle from any one of them, plus arc length, chord, sector area, segment area and sagitta for a given central angle.Right Angled Triangle Angle CalculatorSolves a right triangle from any two of leg a, leg b, hypotenuse, an acute angle, the area or the perimeter, returning all sides, angles, area, altitude to the hypotenuse, inradius and circumradius.Right Angled Triangle Length CalculatorSolves a right triangle from any two of leg a, leg b, hypotenuse, an acute angle, the area or the perimeter, returning all sides, angles, area, altitude to the hypotenuse, inradius and circumradius.sq ft Room CalculatorCalculates floor or wall area for rectangular, square, round, triangular, trapezoidal or elliptical spaces, adds a waste allowance and estimates material quantity and cost.sq Yard CalculatorCalculates floor or wall area for rectangular, square, round, triangular, trapezoidal or elliptical spaces, adds a waste allowance and estimates material quantity and cost.Square Feet Room CalculatorCalculates floor or wall area for rectangular, square, round, triangular, trapezoidal or elliptical spaces, adds a waste allowance and estimates material quantity and cost.Cone Volume CalculatorSolves a right circular cone or truncated cone for volume, slant height, lateral and total surface area, taper angle and capacity.Scale CalculatorFinds the scale factor between an original and a scaled length, with the matching area and volume factors, and converts a drawing measurement to its real length using the drawing scale ratio.Slope Intercept Form CalculatorFinds the slope of a line from two points, a rise and run, an angle or a percent grade, then returns the slope-intercept, point-slope and standard forms plus the parallel and perpendicular slopes.Cube CalculatorVolume, surface area, lateral area and weight for 19 standard solids: prisms, pyramids, cylinders, cones, spheres, Platonic solids, tori, ellipsoids, caps and capsules.Law Cosines CalculatorSolves any triangle from SSS, SAS, ASA, AAS or SSA data using the law of sines and the law of cosines, returning all sides, all angles, area, perimeter, circumradius and inradius, and both triangles in the ambiguous case.Point Slope Form CalculatorFinds the slope of a line from two points, a rise and run, an angle or a percent grade, then returns the slope-intercept, point-slope and standard forms plus the parallel and perpendicular slopes.Radius CalculatorComputes radius, diameter, circumference and area of a circle from any one of them, plus arc length, chord, sector area, segment area and sagitta for a given central angle.Diameter CalculatorComputes radius, diameter, circumference and area of a circle from any one of them, plus arc length, chord, sector area, segment area and sagitta for a given central angle.Soh Cah Toa CalculatorSolves a right triangle from any two of leg a, leg b, hypotenuse, an acute angle, the area or the perimeter, returning all sides, angles, area, altitude to the hypotenuse, inradius and circumradius.Square Inch CalculatorCalculates floor or wall area for rectangular, square, round, triangular, trapezoidal or elliptical spaces, adds a waste allowance and estimates material quantity and cost.Pythagoras CalculatorSolves a right triangle from any two of leg a, leg b, hypotenuse, an acute angle, the area or the perimeter, returning all sides, angles, area, altitude to the hypotenuse, inradius and circumradius.Unit Circle CalculatorEvaluates sine, cosine, tangent, their reciprocals and hyperbolic partners, or inverts any of them, and reports all six circular functions of the resulting angle with its quadrant, reference angle and exact unit-circle value.Angle Between Vectors CalculatorFinds the angle between two vectors of any dimension from the dot product formula cos θ = (a·b)/(|a||b|), and returns the dot product, magnitudes, cosine similarity, cross product, projection and whether the vectors are perpendicular or parallel.