How-To Guides
Step-by-step guides that teach you how to perform calculations manually.
Triangle Solver: Step-by-Step Guide
Solve any triangle given 3 known values
Read guideHow to Calculate Trigonometric Values on the Unit Circle: Step-by-Step Guide
Learn to calculate trig values manually
Read guideHow to Calculate Arctan: Step-by-Step Guide
Learn to find angles using inverse tangent
Read guideHow to Calculate Arccos: Step-by-Step Guide
Learn to find angles from cos values
Read guideHow to Calculate Arcsin: Step-by-Step Guide
Learn to calculate arcsin manually
Read guideHow to Calculate Tangent: Step-by-Step Guide
Calculate tan(θ) manually
Read guideHow to Calculate Cosine: Step-by-Step Guide
Calculate cosine manually
Read guideHow to Calculate Sine: Step-by-Step Guide
Learn to calculate sine manually
Read guideHow to Visualize Trig Function Graphs: Step-by-Step Guide
Learn to visualize trig graphs manually
Read guideHow to Calculate Inverse Trig Functions: Step-by-Step Guide
Learn inverse trig functions
Read guideHow to Calculate Trigonometric Ratios: Step-by-Step Guide
Learn to calculate sin, cos, tan by hand
Read guideHow to Calculate Trig Functions Manually: Step-by-Step Guide
Manual trig calculations made easy
Read guideHow to Calculate Trigonometry: Step-by-Step Guide
Learn trigonometry manually
Read guideBox Volume Calculator: Step-by-Step Guide
Calculate box volume manually
Read guidePool Volume Calculator: Step-by-Step Guide
Calculate pool volume in litres and gallons
Read guideHow to Calculate Pipe Volume: Step-by-Step Guide
Calculate pipe volume manually
Read guideHow to Calculate Tetrahedron Properties: Step-by-Step Guide
Calculate tetrahedron volume and surface area manually
Read guideHow to Calculate Octahedron Properties: Step-by-Step Guide
Calculate octahedron properties manually
Read guideHow to Calculate the Volume and Surface Area of a Hexagonal Prism: Step-by-Step Guide
Calculate hexagonal prism volume and surface area manually
Read guideHow to Calculate the Volume and Surface Area of a Pentagonal Prism: Step-by-Step Guide
Calculate volume and surface area of a pentagonal prism
Read guideHow to Calculate the Volume of a Frustum: Step-by-Step Guide
Calculate frustum volume manually
Read guideHow to Calculate Torus Volume and Surface Area: Step-by-Step Guide
Calculate torus volume and surface area manually
Read guideHow to Calculate Ellipsoid Volume and Surface Area: Step-by-Step Guide
Calculate ellipsoid volume and surface area manually
Read guideDistance Calculator 3D: Step-by-Step Guide
Calculate 3D distance manually
Read guideHow to Calculate the Volume and Surface Area of a Square Pyramid
Calculate pyramid volume and surface area
Read guideHow to Calculate Surface Area: Step-by-Step Guide
Calculate surface area manually
Read guideHow to Calculate Volume: Step-by-Step Guide
Calculate volume manually
Read guideHow to Calculate Tube Volume and Surface Area: Step-by-Step Guide
Calculate tube volume and surface area manually
Read guideHow to Calculate Volume and Surface Area of a Triangular Prism: Step-by-Step Guide
Calculate volume and surface area manually
Read guideHow to Calculate the Volume and Surface Area of a Capsule: Step-by-Step Guide
Calculate capsule volume and surface area manually
Read guide