Radius Converter

Calculate circumference and surface area directly using a circle's core radius.

Learning Formulas

Circumference (C) = 2 · π · r

Area (A) = π · r²

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Circumference (C)0.0000
Area (A)0.0000

Diameter Converter

Evaluate circle bounding properties by typing its width edge-to-edge.

Learning Formulas

Circumference (C) = π · d

Area (A) = π · (d / 2)²

Preview
Circumference (C)0.0000
Area (A)0.0000

Circumference Decoder

Decode a total length loop backwards to uncover basic metrics.

Learning Formulas

Diameter (d) = C / π | Radius (r) = C / (2 · π)

Area (A) = π · r²

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Diameter (d)0.0000
Radius (r)0.0000
Area (A)0.0000

Circle Area Decoder

Input a flat area measurement to isolate the core metrics.

Learning Formulas

Radius (r) = √(A / π) | Diameter (d) = 2 · r

Circumference (C) = 2 · π · r

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Radius (r)0.0000
Diameter (d)0.0000
Circumference (C)0.0000

Square Metrics

Calculate the total 2D size space and bounding fence path.

Learning Formulas

Area (A) = s²

Perimeter (P) = 4 · s

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Area (A)0.0000
Perimeter (P)0.0000

Rectangle Metrics

Provide dual perpendicular axis values to view dynamic proportions.

Learning Formulas

Area (A) = l · w

Perimeter (P) = 2 · (l + w)

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Area (A)0.0000
Perimeter (P)0.0000

Triangle Area

Enter structural base limits and vertical drop heights.

Learning Formula

Area (A) = 0.5 · b · h

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Area (A)0.0000

Parallelogram Area

Evaluate slanted flat squares by calculating heights.

Learning Formula

Area (A) = b · h

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Area (A)0.0000

Trapezoid Area

Compute space bounded within dual parallel base offsets.

Learning Formula

Area (A) = [ (a + b) · h ] / 2

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Area (A)0.0000

Regular Hexagon Metrics

Evaluate a 6-sided polygon matching identical paths.

Learning Formulas

Area (A) = (3 · √3 / 2) · s²

Perimeter (P) = 6 · s

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Area (A)0.0000
Perimeter (P)0.0000

Ellipse Area

Calculate space enclosed by an asymmetric oval axis plane.

Learning Formula

Area (A) = π · a · b

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Area (A)0.0000

Cube Solid Metrics

Measure content spaces and skin areas for 3D blocks.

Learning Formulas

Volume (V) = s³ | Surface Area (SA) = 6 · s²

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Volume (V)0.0000
Surface Area (SA)0.0000

Sphere Solid Metrics

Evaluate ball loops anchored by a central line.

Learning Formulas

Volume (V) = (4/3) · π · r³ | Surface Area (SA) = 4 · π · r²

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Volume (V)0.0000
Surface Area (SA)0.0000

Cylinder Solid Metrics

Resolve pipe layouts holding twin disk bases.

Learning Formulas

Volume (V) = π · r² · h

Surface Area (SA) = 2·π·r·h + 2·π·r²

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Volume (V)0.0000
Surface Area (SA)0.0000

Cone Solid Metrics

Determine standard cone spreads tapering up into points.

Learning Formulas

Volume (V) = (1/3) · π · r² · h

Surface Area (SA) = π · r · (r + √(h² + r²))

Preview
Volume (V)0.0000
Surface Area (SA)0.0000

Triangular Pyramid

Calculate metrics for regular regular tetrahedrons with uniform equilateral bases.

Learning Formulas

Volume (V) = (1/3) · BaseArea · h

BaseArea (BA) = (√3 / 4) · s²

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Volume (V)0.0000
Base Area (BA)0.0000

Torus / Donut Solid

Measure full hollow rings by sweeping small tube tracks around larger hub circles.

Learning Formulas

Volume (V) = 2 · π² · R · r²

Surface Area (SA) = 4 · π² · R · r

Preview
Volume (V)0.0000
Surface Area (SA)0.0000