Unit converter
Length, area, mass, force, stress, moment and section properties, converted into every unit at once.
02Value and unit
Length in every unit
| Unit | Value | Copy |
|---|---|---|
| mmmillimetres | 1,000 | |
| cmcentimetres | 100 | |
| mmetres | 1 | |
| ininches | 39.37008 | |
| ftfeet | 3.28084 |
Shown to seven significant figures. The page address keeps your value, so the link reopens this conversion.
How it is defined
- 1 in = 25.4 mm and 1 lb = 0.45359237 kg, exact by definition.
- Force and stress in kgf and kgf/cm² use standard gravity, 9.80665 m/s².
- 1 MPa = 1 N/mm², the same unit under two names.
Rounding
Values are shown to seven significant figures; very large or small results switch to scientific notation. Conversions are calculated at full precision, so rounding here never affects the result.
Disclaimer
Preliminary figures for estimating and planning only. Not a substitute for design or checking by a qualified structural engineer; verify results against the applicable standards and project specifications.
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- 01Technical review — An engineer reviews your drawings and requirements.
- 02Clarifications — If anything is unclear or missing, we ask before pricing.
- 03Quotation — You receive a quotation with scope, programme and exclusions.
Drawing transmittal
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- Purpose
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What to include
- Drawings · PDF, DWG, DXF, IFC
- Approximate tonnage
- Site location
- Required-by date
- Specification · grade, paint, inspection
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