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0.2 Conversion factors

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Length
m cm km
1 meter 1 10 2 10 −3
1 centimeter 10 −2 1 10 −5
1 kilometer 10 3 10 5 1
1 inch 2.540 × 10 −2 2.540 2.540 × 10 −5
1 foot 0.3048 30.48 3.048 × 10 −4
1 mile 1609 1.609 × 10 4 1.609
1 angstrom 10 −10
1 fermi 10 −15
1 light-year 9.460 × 10 12
in. ft mi
1 meter 39.37 3.281 6.214 × 10 −4
1 centimeter 0.3937 3.281 × 10 −2 6.214 × 10 −6
1 kilometer 3.937 × 10 4 3.281 × 10 3 0.6214
1 inch 1 8.333 × 10 −2 1.578 × 10 −5
1 foot 12 1 1.894 × 10 −4
1 mile 6.336 × 10 4 5280 1

Area

1 cm 2 = 0.155 in. 2

1 m 2 = 10 4 cm 2 = 10.76 ft 2

1 in. 2 = 6.452 cm 2

1 ft 2 = 144 in. 2 = 0.0929 m 2

Volume

1 liter = 1000 cm 3 = 10 −3 m 3 = 0.03531 ft 3 = 61.02 in. 3

1 ft 3 = 0.02832 m 3 = 28.32 liters = 7.477 gallons

1 gallon = 3.788 liters

Time
s min h day yr
1 second 1 1.667 × 10 −2 2.778 × 10 −4 1.157 × 10 −5 3.169 × 10 −8
1 minute 60 1 1.667 × 10 −2 6.944 × 10 −4 1.901 × 10 −6
1 hour 3600 60 1 4.167 × 10 −2 1.141 × 10 −4
1 day 8.640 × 10 4 1440 24 1 2.738 × 10 −3
1 year 3.156 × 10 7 5.259 × 10 5 8.766 × 10 3 365.25 1
Speed
m/s cm/s ft/s mi/h
1 meter/second 1 10 2 3.281 2.237
1 centimeter/second 10 −2 1 3.281 × 10 −2 2.237 × 10 −2
1 foot/second 0.3048 30.48 1 0.6818
1 mile/hour 0.4470 44.70 1.467 1

Acceleration

1 m/s 2 = 100 cm/s 2 = 3.281 ft/s 2

1 cm/s 2 = 0.01 m/s 2 = 0.03281 ft/s 2

1 ft/s 2 = 0.3048 m/s 2 = 30.48 cm/s 2

1 mi/h · s = 1.467 ft/s 2

Mass
kg g slug u
1 kilogram 1 10 3 6.852 × 10 −2 6.024 × 10 26
1 gram 10 −3 1 6.852 × 10 −5 6.024 × 10 23
1 slug 14.59 1.459 × 10 4 1 8.789 × 10 27
1 atomic mass unit 1.661 × 10 −27 1.661 × 10 −24 1.138 × 10 −28 1
1 metric ton 1000
Force
N dyne lb
1 newton 1 10 5 0.2248
1 dyne 10 −5 1 2.248 × 10 −6
1 pound 4.448 4.448 × 10 5 1
Pressure
Pa dyne/cm 2 atm cmHg lb/in. 2
*Where the acceleration due to gravity is 9.80665 m/s 2 and the temperature is 0 ° C
1 pascal 1 10 9.869 × 10 −6 7.501 × 10 −4 1.450 × 10 −4
1 dyne/centimeter 2 10 −1 1 9.869 × 10 −7 7.501 × 10 −5 1.450 × 10 −5
1 atmosphere 1.013 × 10 5 1.013 × 10 6 1 76 14.70
1 centimeter mercury* 1.333 × 10 3 1.333 × 10 4 1.316 × 10 −2 1 0.1934
1 pound/inch 2 6.895 × 10 3 6.895 × 10 4 6.805 × 10 −2 5.171 1
1 bar 10 5
1 torr 1 (mmHg)
Work, energy, heat
J erg ft.lb
1 joule 1 10 7 0.7376
1 erg 10 −7 1 7.376 × 10 −8
1 foot-pound 1.356 1.356 × 10 7 1
1 electron-volt 1.602 × 10 −19 1.602 × 10 -12 1.182 × 10 −19
1 calorie 4.186 4.186 × 10 7 3.088
1 British thermal unit 1.055 × 10 3 1.055 × 10 10 7.779 × 10 2
1 kilowatt-hour 3.600 × 10 6
eV cal Btu
1 joule 6.242 × 10 18 0.2389 9.481 × 10 −4
1 erg 6.242 × 10 11 2.389 × 10 −8 9.481 × 10 −11
1 foot-pound 8.464 × 10 18 0.3239 1.285 × 10 −3
1 electron-volt 1 3.827 × 10 −20 1.519 × 10 −22
1 calorie 2.613 × 10 19 1 3.968 × 10 −3
1 British thermal unit 6.585 × 10 21 2.520 × 10 2 1

Power

1 W = 1 J/s

1 hp = 746 W = 550 ft · lb/s

1 Btu/h = 0.293 W

Angle

1 rad = 57.30 ° = 180 ° / π

1 ° = 0.01745 rad = π / 180 rad

1 revolution = 360 ° = 2 π rad

1 rev/min ( rpm ) = 0.1047 rad/s

Questions & Answers

what does preconceived mean
sammie Reply
physiological Psychology
Nwosu Reply
How can I develope my cognitive domain
Amanyire Reply
why is communication effective
Dakolo Reply
Communication is effective because it allows individuals to share ideas, thoughts, and information with others.
effective communication can lead to improved outcomes in various settings, including personal relationships, business environments, and educational settings. By communicating effectively, individuals can negotiate effectively, solve problems collaboratively, and work towards common goals.
it starts up serve and return practice/assessments.it helps find voice talking therapy also assessments through relaxed conversation.
miss
Every time someone flushes a toilet in the apartment building, the person begins to jumb back automatically after hearing the flush, before the water temperature changes. Identify the types of learning, if it is classical conditioning identify the NS, UCS, CS and CR. If it is operant conditioning, identify the type of consequence positive reinforcement, negative reinforcement or punishment
Wekolamo Reply
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Wekolamo
because it helps many people around the world to understand how to interact with other people and understand them well, for example at work (job).
Manix Reply
Agreed 👍 There are many parts of our brains and behaviors, we really need to get to know. Blessings for everyone and happy Sunday!
ARC
A child is a member of community not society elucidate ?
JESSY Reply
Isn't practices worldwide, be it psychology, be it science. isn't much just a false belief of control over something the mind cannot truly comprehend?
Simon Reply
compare and contrast skinner's perspective on personality development on freud
namakula Reply
Skinner skipped the whole unconscious phenomenon and rather emphasized on classical conditioning
war
explain how nature and nurture affect the development and later the productivity of an individual.
Amesalu Reply
nature is an hereditary factor while nurture is an environmental factor which constitute an individual personality. so if an individual's parent has a deviant behavior and was also brought up in an deviant environment, observation of the behavior and the inborn trait we make the individual deviant.
Samuel
I am taking this course because I am hoping that I could somehow learn more about my chosen field of interest and due to the fact that being a PsyD really ignites my passion as an individual the more I hope to learn about developing and literally explore the complexity of my critical thinking skills
Zyryn Reply
good👍
Jonathan
and having a good philosophy of the world is like a sandwich and a peanut butter 👍
Jonathan
generally amnesi how long yrs memory loss
Kelu Reply
interpersonal relationships
Abdulfatai Reply
What would be the best educational aid(s) for gifted kids/savants?
Heidi Reply
treat them normal, if they want help then give them. that will make everyone happy
Saurabh
What are the treatment for autism?
Magret Reply
hello. autism is a umbrella term. autistic kids have different disorder overlapping. for example. a kid may show symptoms of ADHD and also learning disabilities. before treatment please make sure the kid doesn't have physical disabilities like hearing..vision..speech problem. sometimes these
Jharna
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Jharna
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Jharna
results you'll get.. please consult a therapist to know what suits best on your child. and last as a parent. I know sometimes it's overwhelming to guide a special kid. but trust the process and be strong and patient as a parent.
Jharna
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Source:  OpenStax, University physics volume 2. OpenStax CNX. Oct 06, 2016 Download for free at http://cnx.org/content/col12074/1.3
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