Structural Engineering Unit Converter
Convert between SI and US customary units — force, stress, moment, load, length, area, volume, unit weight, and temperature. Type in any field to instantly convert all others.
Force
About This Unit Converter
This free online unit converter is built for structural and civil engineers who work across multiple design codes and unit systems. Whether you need to convert kN to kip, MPa to ksi, kN/m to kip/ft, or kN·m to kip·ft, the tool handles the most frequently needed SI and US customary conversions in one place — no formula lookup required.
Force conversions include N, kN, MN, kgf, metric ton-force (tf), lbf, and kip. Stress and pressure conversions span Pa, kPa, MPa, GPa, kgf/cm², psi, and ksi — essential when comparing concrete compressive strength, steel yield strength (Fy), or soil bearing capacity between ACI 318, Eurocode 2, IS 456, AISC, and TS 500 standards. Bending moment covers kN·m, kip·ft, and kip·in for beam and column design. Linear load (kN/m ↔ kip/ft) and area load (kN/m² ↔ psf ↔ ksf) are included for slab and frame analysis. Unit weight conversions between kN/m³ and pcf support material density inputs. Length, area, and volume conversions cover mm, cm, m, in, ft, and related derived units. Finally, temperature conversion between °C, °F, and Kelvin supports material specification and thermal load calculations.