This page has been robot translated, sorry for typos if any. Original content here.

Constants, Unit Reference

More on the topic:

Length measures

1 inch = 2.539 cm
1 inch = 12 lines
1 inch = 1000 mil
1 cm = 0.3937 inch
1 mm = 1000 microns
1 micron = 1000 nanometer
1 nanometer = 10 angstroms
1 foot = 0.3048 meters
1 foot = 3 palms
1 foot = 12 inches
1 foot = 144 lines
1 foot = 12,000 mil
1 meter = 3.281 feet
1 yard = 0.9144 meters
1 yard = 3 feet
1 meter = 1.094 yards
1 km = 0.6214 miles
1 mile land = 1.609 km
1 mile land = 8 furlong
1 mile land = 80 chain
1 mile land = 5280 feet
1 mile land = 1760 yards
1 mile English = 500 feet
1 mile English = 1.523 km
1 Russian mile = 7.468 km
1 Russian mile = 7,000375 versts
1 Russian mile = 3,500188 milestones
1 mile = 1.0668 km
1 mile = 500 fathoms
1 verst = 430.1613 oblique fathoms
1 mile = 606.1364 fly-fathoms
1 mile = 1500 arshins
1 boundary verst = 2 versts
1 fathom = 2.1336 meters
1 sazhen = 3 arshins
1 fathom = 5.08 cubits
1 fathom = 7 feet
1 fathom = 12 spans
1 sazhen = 48 pips
1 span = 17.78 cm
1 span = 4 apex
1 span = 7 inches
1 span = 70 Russian lines
1 nautical league = 3 nautical miles
1 mile nautical = 1.852 km
1 nautical mile = 8.439049 cables
1 sea mile = 10 small cables
1 cable = 185.2 m
1 cable = 120 fathom (fathoms)
1 mile geographical = 1 'of the earth's equator
1 mile geographic = 1.8532 km
1 nautical league = 3 nautical miles
1 nautical league = 5555.55 km
1 league (league) = 4.828032 km
1 league (league) = 1 land miles
1 chain = 4 kind
1 chain = 22 yards
1 chain = 66 feet
1 chain = 100 links
1 chain = 792 inches
1 light second = 299792.5 km
1 light minute = 60 light seconds
1 astronomical unit = 8.316746 light minutes
1 light year = 63239.73 astronomical units
1 parsec = 3.261633 light years
1 redshift = 4222000000 parsecs

Square measures

1 inch2 = 6.452 cm2
1 cm2 = 0.155 inch2
1 mile2 = 2.59 km2
1 mile2 = 640 acres
1 mile2 = 259 hectares
1 km2 = 0.38612
1 acre = 0.4047 hectares
1 acre = 4 ores
1 acre = 160 rod2
1 hectare = 2,471 acres
1 ar (weaving) = 100 m2
1 hectare = 100 hectare
1 hectare = 10,000 m2
1 ore = 1011.714 m2
1 ore = 40 rod2
1 ore = 108.9 squares
1 ore = 1210 yards2
1 ft2 = 144 in2
1 ft2 = 0.0929 m2
1 yard2 = 9 ft2
1 yard2 = 0.8361 m2
1 town = 93.23957 km2
1 Township = 36 miles2
1 town = 144 homestead
1 homestead = 160 acres
1 homestead = 640 ores
1 meter2 = 10.76 feet2
1 meter2 = 1.196 yards2
1 mile 2 = 1.138062 km2
1 mile 2 = 78.125 acres
1 mile 2 = 104.1667 tithes of state
1 tithe breech = 10925.4 m2
1 tithing household = 14567.2 m2
1 tithe household = 1.3333333 tithes of state
1 tithe household = 28800 arshins 2

Measures and units of speed

The speed of sound in air = 331.46 m / s
The speed of sound in air = 1193.256 km / h
The speed of light in vacuum = 299792.5 km / s
1 km / s = 3600 km / h
1 km / s = 60,000 m / min
1 km / s = 0.6213712 mph
1 km / h = 0.2777778 meter / s
1 km / h = 16.66667 meter / min
1 km / h = 0.6213712 mph
1 knot = 1.852 km / h
1 knot = 1,150779 miles / hour
1 knot = 1.68781 ft / s

Paper sizes

A0 = 1189x841
A1 = 841x594
A2 = 594x420
A3 = 420x297
A4 = 297x210
A5 = 210x148
A6 = 148x105
A7 = 105x74
B0 = 1000x1414
B1 = 707x1000
B2 = 500x707
B3 = 353x500
B4 = 250x353
B5 = 176x250
B6 = 125x176
B7 = 88x125
C3 = 324x458
C4 = 229x324
C5 = 162x229
DL = 220x110

Volume measures

1 inch3 = 16.39 cm3
1 in3 = 0.01639 liters
1 liter = 61.03 inches 3
1 bulk gallon = 4.546 liters
1 gallon = 4 quarts
1 gallon = 8 pints
1 gallon = 32 gills
1 gallon = 128 fl oz
1 gallon = 1024 liquid drams
1 gallon = 61440 minima
1 liter = 0.2270207 bulk gallon
1 liter = 0.264172 liquid gallon
1 barrel dry = 0.115628 m3
1 barrel of oil = 0.158988 m3
1 barrel English = 0.16365 m3
1 liter = 1000 cm3
1 cm3 = 0.06102 in3
1 ft3 = 0.02832 m3
1 meter3 = 35.31 feet3
1 yard3 = 0.7646 m3
1 meter3 = 1.308 yards3
1 register ton = 2832 m3
1 bushel = 36.36879 liters
1 bushel = 33.02588 loose quarts
1 loose pitch = 8.809768 liters
1 pitch = 8 quarts
1 pitch = 16 pints
1 pitch = 64 gills
1 loose quart = 1,101221 liters
1 quart = 0.25 gallon
1 quart = 2 pints
1 quart = 4 gills
1 fl oz = 29.57353 cm3
1 fluid ounce = 8 fluid drams
1 liquid drachma = 3.696691 cm3
1 liquid drachma = 60 minim
1 quad = 2.133203 buckets
1 quad = 8 garnets
1 barrel = 40 buckets
1 bucket = 12.3 liters
1 bucket = 4 quarters
1 bucket = 10 shtof
1 bucket = 16 wine bottles
1 bucket = 20 vodka bottles
1 shtof = 1.23 liters
1 shtof = 2 vodka bottles
1 damask = 10 cups
1 damask = 20 scales
1 coffer = 0.1 buckets
1 vodka bottle = 0.615 liters
1 wine bottle = 0.76875 liters
1 scale = 61.5 cm3
1 garnerz = 3.2798 liters

Weight measures

1 gran = 0.0648 grams
1 gran = 20 bytes
1 gran = 480 doit
1 gran = 0.05 scrupul
1 carat = 3.086 grains
1 carat = 200 mg
1 gram = 15.43 grains
1 oz = 28.34952 grams
1 oz = 16 drams
1 gram = 0.03527 ounces
1 pound = 16 ounces
1 pound = 0.4535924 kg
1 kg = 2.205 pounds
1 troy ounce = 31.1035 grams
1 troy ounce = 155.5174 carats
1 troy ounce = 20 pennyweights
1 troy ounce = 480 grains
1 troy pound = 12 troy ounces
1 troy pound = 373.242 grams
1 long ton = 1016.047 kg
1 long ton = 20 long centners
1 long ton = 160 stones
1 long ton = 2240 pounds
1 short ton = 907.1847 kg
1 short ton = 20 short centners
1 short ton = 2000 pounds
1 stone = 6.350293 kg
1 Central English = 112 pounds
1 Central English = 58.8 kg
1 Berkovets = 10 pounds
1 pood = 16.38048 kg
1 pood = 40 Russian pounds
1 Russian pound = 0.409512 kg
1 Russian pound = 32 lots
1 Russian pound = 96 spools
1 spool = 4.26575 grams
1 spool = 96 shares

Temperature matching

1 degree Celsius = 1.8 degrees Fahrenheit
1 degree Celsius = 1 Kelvin
1 degree Celsius = 0.8 degrees Reaumur
1 degree Celsius = 1.8 degrees Rankin