<길이>

0.001 inches      = 0.025 mm
0.004 inches      = 0.1 mm
1 in.                   = 25.4 mm
1 foot (ft.)         = 12 in.= 304.8 mm
1 yard                = 3 ft.= 0.914 m

<넓이>

1 square inch (sq.in.)   = 6.45 cm²
1 square foot (sq.ft.)   = 144 sq.in. = 929.03 cm²
1 square yard (sq.yd)  = 9 sq.ft. = 0.836 m²

<부피>

1 cubic inch (cu.in.)   = 16.387 cm³(cc)
1 cubic foot (cu.ft.)   = 1728 cu.in.= 0.0283 m³
1 pint                        = 0.568 Litre
1 US Gallon              = 3.785 Litre
1 UK (Imp) Gallon  = 4.546 Litre

<무게>

1 ounce (oz.)      = 28.35 g
1 pound (lb.)      = 16 oz.= 0.454 kg
1 ton                  = 2240 lb. = 1016 kg
1 tonne               = 1000 kg

<힘>

1 lbf                   = 4.45 N
1 kg f                 = 2.205 lbf
1 ton f               = 9.964 kN
1 tonne f           = 9.81 kN
1 dyne/cm²     = 10 Pa

<강도>

1 N/mm²           = 1 MN/m²     = 1 MPa
                             = 10 daN/cm²  = 10 kgf/cm²
                             = 145 lbf/sq.in.
1 daN/cm (peel)   = 1N/mm

<토르크>

1 N.m         = 10 daN.cm   = 8.85 lbf.in
                   = 0.737 lb.ft

<압력>

14.5 lbf/sq.in  (psi)    = 1 bar            = 105 N/m²
                                   = 0.1 N/mm² = 0.1 Mpa

<점도(동적)>

1 centipoise (cPs)     = 1 mPa.s (milli Pascal second).
1 Pa.s                        = 1000 mPa.s

<온도>

1 °F      = 1.80 (°C + 32)
1 °C      = 0.556 (°F - 32)

<비중>

질량(g)       = 부피(ml) x 비중 (sg)
부피(ml)    = 질량(g) /비중(sg)

** 앞에 있는 단위를 주의해야 합니다***
예1)M           = Mega
예2)m            = milli
예3)1 MPa   = 1 x 10⁶Pa
예4)1 mPa.s = 1 x 10^-3Pa.s