SKY-001 / Engineering tools
Free engineering calculators
Calculate bolt-circle coordinates, plate weight, 3D printing costs and room areas with transparent formulas. Browser-only tools with no account required.
Calculations run locally in your browser. Inputs stay on this page, and using the calculators requires no account or credits.
3D printing cost calculator
Calculate an FDM print cost in USD from slicer filament weight, print duration, energy, machine time and labor. See each cost separately.
02Room & floor area calculator
Add rectangular rooms in meters, decimal feet or feet and inches. Calculate each room’s net area and the combined total in square meters and square feet.
03Bolt Circle Calculator
Calculate equally spaced hole centers from a known pitch circle diameter. Inspect the diagram, copy coordinates or download a CSV in your browser.
04Steel & Aluminum Plate Weight Calculator
Estimate steel, aluminum or custom-density plate mass from rectangular or circular dimensions and quantity. Compare kilograms and pounds.