* 1tonne (metric) = 2240lbs
** 1ton (imperial) = 2000lbs
***1 Imp gal. = 1.20095 U.S. gal
Imperial to S.I. Metric S.I. Metric to Imperial
1. Length
1yd = 0.9144m
1ft = 0.3048m
1in = 0.0254m
1in = 25.4mm
1ft = 0.3048m
1in = 0.0254m
1in = 25.4mm
1m = 1.09361yd
1m = 3.28084ft
1m = 39.3701in
1mm = 0.03937in
1m = 3.28084ft
1m = 39.3701in
1mm = 0.03937in
2. Area
1yd2 = 0.836127m²
1ft2 = 0.092903m²
1in2 = 645.16mm²
1ft2 = 0.092903m²
1in2 = 645.16mm²
1m2 = 1.19599yd²
1m2 = 10.7639ft²
1mm2 = 0.00155in²
1m2 = 10.7639ft²
1mm2 = 0.00155in²
3. Area / Unit Width
1in2/ft = 2116.7mm²/m
1mm²/m = 0.4724 x 10-3in²/ft
4. Volume Modulus of Section
1yd³ = 0.7646m³
1ft³ = 0.0283m³
1ft³ = 28.317litre
1gal*** = 4.546litre
1in³ = 16.387x103mm³
1ft³ = 0.0283m³
1ft³ = 28.317litre
1gal*** = 4.546litre
1in³ = 16.387x103mm³
1m³ = 1.308yd³
1m³ = 35.315ft³
1litre = 0.0353ft³
1litre = 0.022gal(0.264USgal)
1m³ = 35.315ft³
1litre = 0.0353ft³
1litre = 0.022gal(0.264USgal)
5. Mass
1tonne* = 1.016ton
1lb = 0.45359237kg
1lb = 0.45359237kg
1ton** = 0.984tonne
1kg = 2.20462lb
1kg = 2.20462lb
6. Mass / Unit Length
1lb/ft = 1.488kg/m
1kg/m = 0.671969lb/ft
7. Mass / Unit Area
1lb/ft² = 4.882kg/m²
1kg/m² = 0.204816lb/ft²
8. Density
1lb/ft³ = 16.0185kg/m³
1kg/m³ = 0.062428lb/ft³
9. Force (load or weight)
1lbf = 4.448N
1kip = 4.448kN
1tonf = 9.964kN
1kip = 4.448kN
1tonf = 9.964kN
1N = 0.2248lbf
1kN = 0.2248kip
1kN = 0.1004tonf
1kN = 0.2248kip
1kN = 0.1004tonf
10. Force (load or weight) / Unit Length
1lbf/ft = 14.59N/m
1lbf/ft = 0.0146kN/m
1kip/ft = 14.59kN/m
1ton/ft = 32.69kN/m
1lbf/ft = 0.0146kN/m
1kip/ft = 14.59kN/m
1ton/ft = 32.69kN/m
1N/m = 0.0685lbf/ft
1kN/m = 68.52lbf/ft
1kN/m = 0.0685kip/ft
1kN/m = 0.0306tonf/ft
1kN/m = 68.52lbf/ft
1kN/m = 0.0685kip/ft
1kN/m = 0.0306tonf/ft
11. Force (load/unit area)
1lb/ft² = 47.88Nm²(Pa)
1lb/ft² = 0.04788kN/m²(kPa)
1kip/ft² = 47.88Nm2(kPa)
1kip/ft² = 0.04788MN/m²(MPa)
1tonf/ft² = 107.3kPa
1ton/ft² = 0.1073MPa
1lb/ft² = 0.04788kN/m²(kPa)
1kip/ft² = 47.88Nm2(kPa)
1kip/ft² = 0.04788MN/m²(MPa)
1tonf/ft² = 107.3kPa
1ton/ft² = 0.1073MPa
1kPa = 20.9lb/ft²
1kPa = 0.0209kip/ft²
1MPa = 20.9kip/ft²
1MPa = 9.324tonf/ft²
1kPa = 0.0209kip/ft²
1MPa = 20.9kip/ft²
1MPa = 9.324tonf/ft²
12. Moment of Force
1lbf.in = 0.113Nm
1lbf.in = 0.000113kNm
1lbf.ft = 1.356Nm
1lbf.ft = 0.001356kNm
1kip.in = 0.113kNm
1kip.ft = 1.356kNm
1ton.ft = 3.037kNm
1lbf.in = 0.000113kNm
1lbf.ft = 1.356Nm
1lbf.ft = 0.001356kNm
1kip.in = 0.113kNm
1kip.ft = 1.356kNm
1ton.ft = 3.037kNm
1N.m = 8.851lbf.in
1N.m = 0.7378lbf.ft
1kN.m = 8851lbf.in
1kN.m = 737.6lbf.ft
1kN.m = 8.851kip.in
1kN.m = 0.7376kip.ft
1kN.m = 0.3293tonf.ft
1N.m = 0.7378lbf.ft
1kN.m = 8851lbf.in
1kN.m = 737.6lbf.ft
1kN.m = 8.851kip.in
1kN.m = 0.7376kip.ft
1kN.m = 0.3293tonf.ft
13. Moment of Force
1lbf.in/ft = 0.371Nm/m
1lbf.in/ft = 0.000371kN/m/m
1lbf.ft/ft = 4.448Nm/m
1lbf.ft/ft = 0.004448kNm/m
1kip.ft/ft = 4.448kNm/m
1tonf.ft/ft = 9.964kNm/m
1lbf.in/ft = 0.000371kN/m/m
1lbf.ft/ft = 4.448Nm/m
1lbf.ft/ft = 0.004448kNm/m
1kip.ft/ft = 4.448kNm/m
1tonf.ft/ft = 9.964kNm/m
1kN.m/m = 2.698lbf.in/ft
1kN.m/m = 0.2248lbf.ft/ft
1kN.m/m = 2698lbf.in/ft
1kN.m/m = 224.8lbf.ft/ft
1kN.m/m = 0.2248kip.ft/ft
1kN.m/m = 1.004tonf.ft/ft
1kN.m/m = 0.2248lbf.ft/ft
1kN.m/m = 2698lbf.in/ft
1kN.m/m = 224.8lbf.ft/ft
1kN.m/m = 0.2248kip.ft/ft
1kN.m/m = 1.004tonf.ft/ft
14. Stress & Modulus of Elasticity
1lbf/in² = 6.895kPa
1lbf/in² = 0.006895MPa
1kip/in² = 6.895MPa
1tonf/ft.ft = 15.444MPa
1lbf/in² = 0.006895MPa
1kip/in² = 6.895MPa
1tonf/ft.ft = 15.444MPa
1kPa = 0.1450lbf/in²
1MPa = 145.0lbf/in²
1MPa = 0.1450kip/in²
1MPa = 0.06475tonf/in²
1MPa = 145.0lbf/in²
1MPa = 0.1450kip/in²
1MPa = 0.06475tonf/in²
15. Properties of Sections
(a) Section of Mudulus Z
1in3 = 16.4 x 103mm3
(b) Second of Moment of Area 1
1in4 = 0.4162 x 106mm3
1in3 = 16.4 x 103mm3
(b) Second of Moment of Area 1
1in4 = 0.4162 x 106mm3
1mm3 = 0.061 x 10-3in3
1mm4 = 2.403 x 10-6in4
16. Thickness
1 micron = 0.001mm
1mil = 0.001in
* 1tonne (metric) = 2240lbs
** 1ton (imperial) = 2000lbs
***1 Imp gal. = 1.20095 U.S. gal