m

inch

foot

yard

1 *

39.3701

3.2808

1.0936

0.0254$

1 *

0.0833

0.0278

0.3048*

12

1*

0.3333

0.9144*

36

3

1*

1km = 0.6214 miles

 Area

cm²

mm²

in2

ft2

yd2

acre

ha

1*

10.000

106*

1550.0031

10.7639

1.196

0.2471 x 10-3

0,1 x 10-3

0.1 x 10-3

1*

100*

0155

1.0764 x 10-3

1 1 96 x 103

24 71 x 10-9

0.1 X 10-6*

10-6*

0.01*

1*

1.55 x 10-3

10.7639 x 10-6

1.196 x 106

0.2471 x 10-9

0,1 X 10-9*

0.64516 x 10-3

6.4516*

645.16*

1*

6.9444 x 10-3

0.7716 X 10-3

0.1594 x 10-6

64.516 x 10-9

0.09290304*

929.0304

92903.044

144*

1*

0.1111

22.9568 x 10-6

9.2903 x 10-6

0.83612736*

8361.2736

0.8361 x 106

1296*

9*

1*

0.2066 x 10-3

83.6136 x 10-6

4046.8561

40.4685 x io6

4.0469 x 109

6272640*

43560*

4840*

1*

0.4047

100000*

100 x 106

109

15.5 x 106

107639.1

11959.9

2.4711

1*

 Volume

cm³

in3

ft3

yd3

* 106

61023.744

35.3147

1.3080

-

10-6

1*

0.0610

35.3146 x 10-5

1.3080x 10-6

16.387 x 10-6

16.387064*

1*

0.5787 x 10-3

21.4334 x 10-6

0.0283

28316.847

1728*

1*

0.0320

0.7646

764554.86

46656*

27*

1*

 Mass

kg

g

pound

oz

1*

1000*

2.2046

35.274

0.001*

1*

2.205 x 10-3

0.0353

0.45359237*

453.5924

1*

16*

0.0283

28.3495

0.0625*

1*

Density

kg/m³

lb/ ft3

lb/ in3

1*

0.0624

3.6106 x 10-5

16.0185

1*

5.787 x 10-4

27679.906

1728*

1*

 Force

N

kgf (=kp)

Lbf

1*

0.102

0.2248

9.80665*

1 *

0.2246

4.4482

0.4536

1 *

 Pressure and Stress

Pa = N/m²

mm Hg

UK ton-force/in2

Pound force/in2

 

(0°C)

(tonf/in2)

(LBF/in2 (= psi))

1*

7.5006 x 10-3

64.7488 x 10-9

0.145 x 10-3

133.322

1*

115841.53

0.0193

06

8.6325 x l0-6

1*

2239.4237

6894.76

51.7283

446.543 K 10 6

1*

  Velocity

m/s

km/in

ft/s

mile/hr

1 *

3.6*

3.2808

2.2369

0.2778

1*

0.9113

0.6214

0.3048*

1.0973

1*

0.6818

0.447

1.609344*

1.4667

1 *

 Temperature

°C

°F

°K

°C

(1.8 x °C) + 32*

°C + 273-15*

( F - 32)1.8*

°F*

(° F - 32)/ 1.8 + 273.15*

°K - 273.15*

(1.8(0K - 273.15)) + 32'

°K*

  Energy

J. Nm, Ws

kWh

kcal

ft Ibf

therm

1*

0-2778 x 106

0.2388 x 10-3

0.7376

9.4781 x 10-9

3.6 x 106*

1*

859.845

2.6552 x 106

0.341

4.1868 x 103

1.163 x 10-3

1*

3.088 x 103

39.6832 x 10-6

1.3558 0.3766 x 10-6

0.3238 x 10-3

1*

12.8506 x 10-9

 

05,505 x 106

29.3071

25199.56

77.8168 x 106

1*