Cardinal numerals

DigitsWordsPronunciation
0zero/ˈzɪəɹəʊ/
1one/wɐn/
2two/tu/
3three/θɹi/
4four/fɔ*/
5five/faɪv/
6six/sɪks/
7seven/ˈsɛvn/
8eight/eɪt/
9nine/naɪn/
10ten/tɛn/
11eleven/ɪˈlɛvn/
12twelve/twɛlv/
13thirteen/θɜˈtin/
14fourteen/fɔˈtin/
15fifteen/fɪfˈtin/
16sixteen/sɪksˈtin/
17seventeen/sɛvnˈtin/
18eighteen/eɪˈtin/
19nineteen/naɪnˈtin/
20twenty/ˈtwɛntɪ/
30thirty/ˈθɜtɪ/
40forty/ˈfɔtɪ/
50fifty/ˈfɪftɪ/
60sixty/ˈsɪkstɪ/
70seventy/ˈsɛvntɪ/
80eighty/ˈeɪtɪ/
90ninety/ˈnaɪntɪ/
100hundred/ˈhɐndɹɪd/
1,000thousand/ˈθaʊznd/
1,000,000million/ˈmɪljən/
1,000,000,000milliard/ˈmɪljɑd/
1,000,000,000billion 1/ˈbɪljən/
1,000,000,000one thousand million 
1,000,000,000,000billion 1/ˈbɪljən/
1,000,000,000,000one million million 


Note

1 The word billion can indicate both 109 and 1012.