1 in = 2.54 cm               1 cm = 0,3937 in

1 ft = 30.84 cm             1 m = 3.28 ft

1 yd = 0.9144 m            1 m = 1.0936 yd

1 mile = 1.6093 km       1 km = 0.62 miles

1     one

2     two

3     three

4     four

5     five

6     six

7     seven

8     eight

9     nine

10    ten

11    eleven

12    twelve

13    thirteen

14    fourteen

15    fifteen

16    sixteen

17    seventeen

18    eighteen

19    nineteen

20    twenty

21    twenty-one

22    twenty-two

23    twenty-three

24    twenty-four

30    thirty

40    forty

50    fifty

60    sixty

70    seventy

80    eighty

90    ninety

100   a hundred