# Speed Conversions

Speed Conversions
Converting between metres per
second and miles per hour.
Converting Between
metres per sec and
km per hour
Converting Between
km per hour and
metres per second
metres per sec
km per hour
metres per second
x 60
&divide; 60
x 60 x 60 (x 3600)
metres per min
km per minute
metres per hour
x 60
&divide; 60
&divide; 1000
metres per hour
km per second
&divide; 1000
x 1000
km per hour
metres per second
km in an hour
5
x
8
miles in an hour
m/sec into km/h =
Km/h into m/sec =
m/sec into km/h =
(1 km =
5
mile)
8
Hint: Take it step by step, think, does my final answer look appropriate?
Convert the following speeds.
m/sec into km/h
km / h into m/sec
m/sec into mph
1. 20 m/sec
6. 80 km/h
11. 20 m/sec
2. 50 m/sec
7. 100 km/h
12. 50 m/sec
3. 110 m/sec
8. 140 km/h
13. 110 m/sec
4. 30 m/sec
9. 200 km/h
14. 30 m/sec
5. 1 m/sec
10. 700 km/h
15. 1 m/sec
Use the correct conversion to convert:
16. 15 m/sec into km/h
17. 25 km/h into m/sec
18. 40 m/sec into mph
19. 80 mph into km/h
20. 80 mph into m/sec
Metric / Imperial Conversions
At GCSE you are expected to know certain conversions:

How many of these do you know?
1 foot
=
12 inches
1 pound
=
16 ounces
1 inch
=
2.5cm
1 stone
=
14 pounds
1 yard
=
3 feet
1 kg
=
2.2 lbs
1 foot
=
30 cm
1 mile
=
1.6 km
1 gallon
=
4.5 litres
1 litre
=
1.75 pints
1 gallon
=
8 pints
x

1) Convert the following:
a) 3 inches to cm
b) 5 gallons to litres
c) 8 lbs to kg
d) 18 stone to pounds
e) 120 inches to cm
f) 10 cm to inches
g) 6 lbs to ounces
h) 45 kg to lbs
i) 182 lbs to stone
j) 15 kg to lbs
k) 9 litres to pints
l) 84 inches to feet
m) 3 yards to inches
n) 45 gallons to litres
o) 52 cm to inches
p) 3 feet to cm
q) 8 litres to pints
r) 12 km to miles
2) Carefully convert the following:
a) 6 feet to inches
b) 4 feet to inches
c) 40 inches to feet
d) 3 yards to feet
e) 2 yards to feet
f) 1000 cm to metres
3) James is 6 feet tall and weighs 11 stone. Michael is 180cm tall and weighs 68kg. Who
is taller and who is heavier?
Metric / Imperial Conversions
At GCSE you are expected to know certain conversions:

How many of these do you know?
1 foot
=
12 inches
1 pound
=
16 ounces
1 inch
=
2.5cm
1 stone
=
14 pounds
1 yard
=
3 feet
1 kg
=
2.2 lbs
1 foot
=
30 cm
1 mile
=
1.6 km
1 gallon
=
4.5 litres
1 litre
=
1.75 pints
1 gallon
=
8 pints
x

4) Convert the following:
s) 3 inches to cm
t) 5 gallons to litres
u) 8 lbs to kg
v) 18 stone to pounds
w) 120 inches to cm
x) 10 cm to inches
y) 6 lbs to ounces
z) 45 kg to lbs
aa) 182 lbs to stone
bb)15 kg to lbs
cc) 9 litres to pints
dd)84 inches to feet
ee) 3 yards to inches
ff) 45 gallons to litres
gg) 52 cm to inches
hh) 3 feet to cm
ii) 8 litres to pints
jj) 12 km to miles
5) Carefully convert the following:
g) 6 feet to inches
h) 4 feet to inches
i) 40 inches to feet
j) 3 yards to feet
k) 2 yards to feet
l) 1000 cm to metres
6) James is 6 feet tall and weighs 11 stone. Michael is 180cm tall and weighs 68kg. Who
is taller and who is heavier?