Converting Units

[Admin]

#13942

Converting  Units

Unit	Large → Small ×	Small → Large ÷
1 km = 100 0m	km → m × 1000	km → m × 1000
1 m = 100 cm	m → cm × 100	cm → m ÷ 100
1 m = 1000 mm	m → mm × 1000	mm → m ÷ 1000
1 cm = 10 mm	cm → mm × 10	mm → cm ÷ 10
1 kg = 1000 g	kg → g × 1000	g → kg ÷ 1000
1 t = 1000 kg	t → kg × 1000	kg → t ÷ 1000
1 g = 1000 mg	g → mg × 1000	g → mg × 1000
1 L = 1000 ml	L → ml × 1000	ml → L ÷ 1000
1 ml = 1 cm3	ml → cm3 × 1	cm3 → ml ÷ 1
1 kL = 1000 L	kL → L × 1000	kL → L × 1000
1 L = 1000 cm3	L → cm3 × 1000	cm3 → L ÷ 1000
1 ML = 1 000 000 L	ML → L × 1,000,000	L → ML ÷ 1,000,000
1 m3 = 1000 L	m3 → L × 1000	L → m3 ÷ 1000
1 km2 = 10002 m2	km2 → m2 × 10002	m2 → km2 ÷ 10002
1 m2 = 1002 cm2	m2 → cm2 × 1002	cm2 → m2 ÷ 1002
1 m2 = 10002 mm2	m2 → mm2 × 10002	m2 → mm2 ÷ 10002
1 cm2 = 102 mm2	cm2 → mm2 × 102	mm2 → cm2 ÷ 102
1 ha = 10 000 m2	ha → m2 × 10,000	m2 → ha ÷ 10,000
1 km2 = 100 ha	km2 → ha × 100	ha → km2 ÷ 100
1 km3 = 10003 m3	km3 →  m3 × 10003	m3 → km3 ÷ 10003
1 m3 = 1003c m3	m3 → cm3 × 1003	cm3 → m3 ÷ 1003
1 m3 = 10003 mm3	m3 → mm3 × 10003	mm3 →m3 ÷ 10003
1 cm3 = 103 mm3	cm3 → mm3 × 103	mm3 → cm3 ÷ 103
1 yr = 365 days	yr → d × 365	d → y ÷ 365
leap yr = 366 days	yr → d × 366	d → y ÷ 366
1yr = 52 wks	yr → wk × 52	wk → yr ÷ 52
1 yr = 26 fortnights	yr → fn × 26	fn → yr ÷ 26
1 wk = 7 days	wk → d × 7	d → wk ÷ 7
1 day = 24 hours	d → hr × 24	hr → d ÷ 24
1 hr = 60 mins	hr → min × 60	hr → min × 60
1 min = 60 secs	min → sec × 60	sec → min ÷ 60
1 hr = 3600 secs	hr → sec × 3600	sec → hr ÷ 3600

Metric Units Prefixes

Prefix	Symbol	Factor	Numerically	Name
tera	T	1012	1 000 000 000 000	trillion
giga	G	109	1 000 000 000	billion
mega	M	106	1 000 000	million
kilo	k	103	1 000	thousand
centi	c	10-2	0.01	hundredth
milli	m	10-3	0.001	thousandth
micro	μ	10-6	0.000 001	millionth
nano	n	10-9	0.000 000 001	billionth

Converting km/h & m/s

km/h → m/s: × 1000 ÷ 60 ÷ 60

m/s → km/h: ÷ 1000 × 60 × 60

[Admin]

#18775

Convert 2 km to cm.

km → m → cm

2 × 1000 × 100 = 200 000cm

[Admin]

#18777

Convert 5 m3 to cm3.
5 × 1003 = 5 000 000 cm3	there are 100cm in 1 m so there are 1003 cm3  in 1m3 to convert from larger units to smaller: multiply by 1003

[Admin]

#18778

Convert 5 m2 to cm2.
5 × 1002 = 50 000 cm2	there are 100 cm in 1 m so there are 1002 cm2  in 1m2 to convert from larger units to smaller: multiply by 1002

[Admin]

#18781

Convert  8.47 × 108g to tonnes.
8.47 × 108 ÷ 1000 = 847 000kg	we are going from small units to large units, so we are dividing. first, convert from grams to kilograms (kg) by dividing by 1000 as 1 kg = 1000 g
847 000 ÷ 1000 = 847 t	convert the kg to tonnes by dividing by 1000 as 1t = 1000 kg

[Admin]

#18792

Convert 50 m/s into km/h.
50 ÷ 1000 × 60 × 60 = 180 km/h	To convert from metres per second into kilometres per hour we need to first convert the metres into kilometres. We do this by dividing by 1000. then we multiply by 60 to convert to per minute and then multiply by 60 again to convert to per hour.

[Admin]

#18794

Convert 60 km/h into m/s.
60 × 1000 ÷ 60 ÷ 60 = 16.667 m/s	To convert from kilometres per hour to metres per second we need to first convert the kilometres into metres. We do this by multiplying by 1000. Then we divide by 60 to convert to per minute and then divide by 60 again to convert to per second.

[Admin]

#18795

Convert 100 km/h into m/s.
100 × 1000  ÷ 60  ÷ 60 = 27.8 m/s	To convert from kilometres per hour to metres per second we need to first convert the kilometres into metres. We do this by multiplying by 1000. Then we divide by 60 to convert to per minute and then divide by 60 again to convert to per second.

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