Length

Multiply	By	To Obtain
Feet	.3048	Meters
Meters	3.281	Feet
Statute Miles	5280	Feet
Statute Mile	.8690	Nautical Miles
Statute Miles	1.609	Kilometers
Nautical Miles	6076	Feet
Nautical Miles	1.151	Statute Miles
Nautical Miles	1.852	Kilometers
Kilometers	3281	Feet
Kilometers	.5400	Nautical Miles
Kilometers	.6214	Statute Miles
Centimeters	.3938	Inches
Inches	2.540	Centimeters

Kilometers to Miles (Statute & Nautical)

Kilometers	SM	NM
1	0.62	0.53
2	1.24	1.08
3	1.86	1.62
4	2.49	2.16
5	3.11	2.70
6	3.73	3.24
7	4.35	3.78
8	4.97	4.32
9	5.59	4.86
10	6.21	5.40

DISTANCE information:

* NM = Nautical Miles : Universally used for flight distances.

* SM = Statute Miles : Used in the USA for visibility information in weather reports.

* ft = feet : Mainly used for altitudes and heights, also used for lenght and width (runways, aprons, taxiways) in anglo-saxon countries.

* m = meters :Used for length and width (runways, aprons, taxiways) everywhere except in anglo-saxon countries. Sometimes used for altitudes (gliders, helicopters). Used also in weather reports for visibility.

Pressure

Multiply	By	To Obtain
Hectopascals	.0295	Inches of Mercury
Inches of Mercury	33.86	Hectopascals

Altimeter (hPa & MM to InHg)

The altimeter setting is being displayed in hectopascals (hPa, 1 hPa =1 mb) or mercury inches (inHg in anglo-saxon countries).

The standard setting is 1013.25 hPa = 29.92 inHg.

Hectopascals (Milibars) to Inches

hPa (MB)

Inches

930

940

27.46

27.76

27.49

27.79

27.52

27.82

27.55

27.85

27.58

27.88

27.61

27.91

27.64

27.94

27.67

27.96

27.70

27.99

27.73

28.02

950

960

28.05

28.35

28.08

28.38

28.11

28.41

28.14

28.44

28.17

28.47

28.20

28.50

28.23

28.53

28.26

28.56

28.29

28.58

28.32

28.61

970

980

28.64

28.94

28.67

28.97

28.70

29.00

28.73

29.03

28.76

29.06

28.79

29.09

28.82

29.12

28.85

29.15

28.88

29.18

28.91

29.21

990

1000

29.23

29.53

29.26

29.56

29.29

29.59

29.32

29.62

29.35

29.65

29.38

29.68

29.41

29.71

29.44

29.74

29.47

29.77

29.50

29.80

1010

1020

29.82

30.12

29.85

30.15

29.88

30.18

29.91

30.21

29.94

30.24

29.97

30.27

30.00

30.30

30.03

30.33

30.06

30.36

30.09

30.39

1030

1040

30.41

30.71

30.44

30.74

30.47

30.77

30.50

30.80

30.53

30.83

30.56

30.86

30.59

30.89

30.62

30.92

30.65

30.95

30.68

30.98

1050

31.00

31.03

31.06

31.09

31.12

31.15

31.18

31.21

31.24

31.27

Millimeters to Inches

Inches

700

710

27.56

27.95

27.60

27.99

27.64

28.03

27.68

28.07

27.72

28.11

27.76

28.15

27.80

28.19

27.83

28.23

27.87

28.27

27.91

28.31

720

730

28.35

28.74

28.39

28.78

28.43

28.82

28.46

28.86

28.50

28.90

28.54

28.94

28.58

28.98

28.62

29.02

28.66

29.06

28.70

29.09

740

750

29.13

29.53

29.17

29.57

29.21

29.61

29.25

29.65

29.29

29.69

29.33

29.72

29.37

29.76

29.41

29.80

29.45

29.84

29.49

29.88

760

770

29.92

30.31

29.96

30.35

30.00

30.39

30.04

30.43

30.08

30.47

30.12

30.51

30.16

30.55

30.20

30.59

30.24

30.63

30.28

30.67

780

790

30.71

31.10

30.75

31.14

30.79

31.18

30.83

31.22

30.87

31.26

30.91

31.30

30.94

31.34

30.98

31.38

31.02

31.42

31.06

31.46

METRIC ALTIMETRY

Bold numbers indicate commonly assigned metric levels

13100 m	43000 ft	7400 m	24280 ft	4700 m	15440 ft	2000 m	6580 ft
12800 m	42000 ft	7300 m	223960 ft	4600 m	15100 ft	1900 m	6240 ft
12500 m	41020 ft	7200 m	23640 ft	4500 m	14780 ft	1800 m	5920 ft
12200 m	40040 ft	7100 m	23300 ft	4400 m	14440 ft	1700 m	5580 ft
12100 m	39720 ft	7000 m	22980 ft	4300 m	14120 ft	1600 m	5260 ft
11900 m	39060 ft	6900 m	22640 ft	4200 m	13800 ft	1500 m	4940 ft
11600 m	38060 ft	6800 m	22320 ft	4100 m	13460 ft	1400 m	4600 ft
11300 m	37080 ft	6700 m	22000 ft	4000 m	13140 ft	1300 m	4280 ft
11100 m	36420 ft	6600 m	21660 ft	3900 m	12800 ft	1200 m	3940 ft
10900 m	35780 ft	6500 m	21340 ft	3800 m	12480 ft	1100 m	3620 ft
10600 m	34780 ft	6400 m	21000 ft	3700 m	12140 ft	1000 m	3300 ft
10300 m	33800 ft	6300 m	20680 ft	3600 m	11820 ft	900 m	2960 ft
10100 m	33140 ft	6200 m	20360 ft	3500 m	11500 ft	850 m	2800 ft
9900 m	32500 ft	6100 m	20020 ft	3400 m	11160 ft	800 m	2640 ft
9600 m	31500 ft	6000 m	19700 ft	3300 m	10840 ft	750 m	2480 ft
9300 m	30520 ft	5900 m	19360 ft	3200 m	10500 ft	700 m	2300 ft
9100 m	29860 ft	5800 m	19040 ft	3100 m	10180 ft	650 m	2140 ft
8900 m	29220 ft	5700 m	18720 ft	3000 m	9860 ft	600 m	1980 ft
8600 m	28220 ft	5600 m	18380 ft	2900 m	9520 ft	550 m	1820 ft
8300 m	27240 ft	5500 m	18060 ft	2800 m	9200 ft	500 m	1660 ft
8100 m	26580 ft	5400 m	17720 ft	2700 m	8860 ft	450 m	1480 ft
8000 m	26260 ft	5300 m	17400 ft	2600 m	8540 ft	400 m	1320 ft
7900 m	25920 ft	5200 m	17080 ft	2500 m	8220 ft	350 m	1160 ft
7800 m	25600 ft	5100 m	16740 ft	2400 m	7880 ft	300 m	1000 ft
7700 m	25280 ft	5000 m	16420 ft	2300 m	7560 ft	250 m	840 ft
7600 m	24940 ft	4900 m	16080 ft	2200 m	7220 ft
7500 m	24620 ft	4800 m	15760 ft	2100 m	6900 ft

Volume

Multiply

To Obtain

US Gallons

Imperial Gallons

Liters

.8326

3.785

1.201

4.546

.2642

.2200

Imperial Gallons

Liters

US Gallons

Liters

US Gallons

Imperial Gallons

Weight Equivalents

Water 8.345 lbs/US Gallon

Water 3.785 Kgs/US Gallon

Water 1.00 Kgs/Liter

Oil 7.4 lbs/US Gallon

Speed

Multiply

To Obtain

Knots

1.151

1.852

.5147

Statute Miles/Hour

Kilometers/Hour

Meters/Second

Statute Miles/Hour

.8690

1.609

.4471

Knots

Kilometers/Hour

Meters/Second

Kilometers/Hour

.5400

.6214

.2778

Knots

Statute Miles/Hour

Meters/Second

1.943

2.237

3.600

Knots

Statute Miles/Hour

Kilometers/Hour

Weight and Density

Weight
Multiply	By	To Obtain
Kilograms Pounds Metric Tons Metric Tons	2.205 .4536 2205 1000	Pounds Kilograms Pounds Kilograms
Pounds	.4536	Kilograms
Density
Multiply	By	To Obtain
Kilograms/Liter Pounds/Gallon	8.346 .1198	Pounds/Gallon Kilograms/Liter

WEIGHT AND FUEL QUANTITY notes:

* kg = kilograms :The fuel quantity is sometimes displayed in kg. This involves a fuel flow expressed in kg/min or kg/hr.

* lb = pounds :Weight unit used in anglo-saxon countries. Many aircraft have their weights and fuel quantity expressed in pounds. The fuel is often expressed in lb/hr.

* gal = gallons :There are several gallons : US gallon (US Gal) used in FS and the English gallon (Imp Gal). Here, gal refers to US gallons.

* l = liters :The fuel quantity is sometimes shown in liters and the fuel flow in l/hr . Oil, fuel for commercial aviation and fuel for general aviation have not the same density. This involves differencies in conversions.

Visibility

The following meters to statute miles, meters to feet, or feet to statute miles values are deemed to be equivalent for operational purposes:

Visibility Meters	Statute Miles	RVR Meters	Feet	RVR Feet	Statute Miles
400	¼	75	300	1600	¼
800	½	125	400	2400	½
1200	¾	150	500	3200	5/8
1600	1	175	600	4000	¾
2000	1 ¼	200	700	4500	7/8
2400	1 ½	300	1000	5000	1
2800	1 ¾	350	1200	6000	1 ¼
3200	2	500	1600
3600	2 ¼	550	1800
4000	2 ½	600	2000
4400	2 ¾	720	2400
4800	3	900	3000
		1200	4000
		1500	5000

Note: Metric equivalents in this table are applicable to both takeoff and landing minima.

Climb/Descent Rate

	Ground Speed, KTS
	120	140	160	180	200	220	240	260	280	300
Climb/Descent Gradient Ft/NM (%)	Climb/Descent Rate, FPM
200 (3.29%)	400	500	550	600	700	750	800	900	950	1000
220 (3.62%)	450	550	600	700	750	850	900	1000	1050	1100
240 (3.95%)	500	600	650	750	800	900	1000	1050	1150	1200
260 (4.28%)	550	650	700	800	900	1000	1050	1150	1250	1300
280 (4.60%)	600	700	750	850	950	1050	1150	1250	1350	1400
300 (4.94%)	600	700	800	900	1000	1100	1200	1300	1400	1500
320 (5.27%)	650	750	900	1000	1100	1200	1300	1400	1500	1600
340 (5.60%)	700	800	950	1050	1150	1250	1400	1500	1600	1700
360 (5.92%)	750	850	1000	1100	1200	1350	1450	1600	1700	1800
380 (6.25%)	800	900	1050	1150	1300	1400	1550	1650	1800	1900
400 (6.58%)	800	950	1100	1200	1350	1500	1600	1750	1900	2000
420 (6.91%)	850	1000	1150	1300	1400	1550	1700	1850	2000	2100
440 (7.24%)	900	1050	1200	1350	1500	1650	1800	1950	2100	2200
460 (7.57%)	950	1100	1250	1400	1550	1700	1850	2000	2150	2300
480 (7.90%)	1000	1150	1300	1450	1600	1800	1950	2100	2250	2400
500 (8.23%)	1000	1200	1350	1500	1700	1850	2000	2200	2350	2500

TEMPERATURE :

The temperature can be displayed in Celsius degrees (°C) or Fahrenheit degrees (°F).

°C	-39	-38	-37	-36	-35	-34	-33	-32	-31	-30
°F	-38.2	-36.4	-34.6	-32.8	-31.0	-29.2	-27.4	-25.6	-23.8	-22.0
°C	-29	-28	-27	-26	-25	-24	-23	-22	-21	-20
°F	-20.2	-18.4	-16.6	-14.8	-13.0	-11.2	-9.4	-7.6	-5.8	-4.0
°C	-19	-18	-17	-16	-15	-14	-13	-12	-11	-10
°F	-2.2	-0.4	1.4	3.2	5.0	6.8	8.6	10.4	12.2	14.0
°C	-9	-8	-7	-6	-5	-4	-3	-2	-1	0
°F	15.8	17.6	19.4	21.2	23.0	24.8	26.6	28.4	30.2	32.0
°C	1	2	3	4	5	6	7	8	9	10
°F	33.8	35.6	37.4	39.2	41.0	42.8	44.6	46.4	48.2	50.0
°C	11	12	13	14	15	16	17	18	19	20
°F	51.8	53.6	55.4	57.2	59.0	60.8	62.6	64.4	66.2	68.0
°C	21	22	23	24	25	26	27	28	29	30
°F	69.8	71.6	73.4	75.2	77.0	78.8	80.6	82.4	84.2	86.0
°C	31	32	33	34	35	36	37	38	39	40
°F	87.8	89.6	91.4	93.2	95.0	96.8	98.6	100.4	102.2	104.0
°C	41	42	43	44	45	46	47	48	49	50
°F	105.8	107.6	109.4	111.2	113.0	114.8	116.6	118.4	120.2	122.0

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L5 - Conversion Tables

Length

Pressure

Altimeter (hPa & MM to InHg)

METRIC ALTIMETRY

Volume

Weight Equivalents

Speed

Weight and Density

Visibility

Climb/Descent Rate