Fish Tank Volume Calculator – Fast & Free

May 18, 2026

Fish Tank Volume Calculator All shapes — rectangular, cylinder, hexagon, corner & more. Gallons, litres, metric. Select Tank Shape Rectangular Cylinder / Round Hexagon Corner / Bow Triangle Octagon Pentagon Bow Front Enter Dimensions Subtract for substrate & decorations Applies 85% fill factor to get actual water volume Show Results In All UnitsUS GallonsUK / […]

Square Footage Calculator – Fast & Free

May 17, 2026

Square Footage Calculator Instantly find area for rooms, roofs, floors, countertops & more — any shape. Select Shape ▭ Rectangle / Square △ Triangle ▢ Trapezoid ◯ Circle ⤵ L-Shape 💡 Formula: Length × Width — Ideal for rooms, flooring, lawns, walls, and roofing footprints. Inputs Length ftinmcmyd Width ftinmcmyd Waste / Overage % Base […]

Roof Pitch Calculator – Find Slope Instantly

May 17, 2026

Roof Pitch Calculator Get pitch ratio, angle in degrees, rafter length & roof area instantly. Select Input Method Rise & Run Pitch Ratio (X/12) Degrees Vertical Rise inftcmm Height from top plate to ridge Horizontal Run inftcmm Horizontal distance to ridge centerline Rise (X in X/12) Common values: 4, 6, 8, 10, 12 Run (always […]

Elevation Grade Calculator – Find Slope Fast

May 17, 2026

Elevation Grade Calculator Instantly find slope percentage, angle, rise & run — roads, trails, ramps & more. Calculation Mode Rise & Run → Grade Grade & Run → Rise Grade & Rise → Run Inputs Vertical Rise ftmincm Vertical height gained or lost Horizontal Run ftmincm Horizontal (flat) distance Inputs Grade / Slope (%) % […]

Pipe Volume Calculator – Fast & Free

May 17, 2026

Pipe Volume Calculator Instantly calculate internal pipe capacity — gallons, liters, cubic feet & more. Inputs Inner Diameter inmmcmftm Pipe Length ftmincm Show Results In All UnitsUS GallonsLitersCubic FeetCubic MetersCubic Inches ! Please enter valid positive values for both diameter and length. Calculate Volume Results ► References & Notes Formula: V = π × r² […]