PrefixSymbol10nLong/Short Scale
| yotta (gr. Okto – eight) | Y | 1024 | Quadrillion/Septillion |
| zetta (lat. Septem – seven) | Z | 1021 | Trilliard/Sextillion |
| eksa (gr. Ex – six) | E | 1018 | Trillion/Quintillion |
| peta (gr. Penta – five) | P | 1015 | Billiard/Quadrillion |
| tera (gr. Teras – monster) | T | 1012 | Billion/Trillion |
| giga (gr. Gigas – giant) | G | 109 | Milliard/Billion |
| mega (gr. Megas – great) | M | 106 | Million/Million |
| kilo (gr. Khilioi – thousand) | k | 10³ | Thousand/Thousand |
| hecto (gr. Hekaton – hundred) | h | 10² | Hundred/Hundred |
| deca (gr. Deka – ten) | da | 101 | Ten/Ten |
| | 100 | One/One |
| decy (lat. Decimus – tenth) | d | 10-1 | Tenth/Tenth |
| centy (lac. Centum – hundredth) | c | 10-2 | Hundredth/Hundredth |
| milli (lac. Mille – thousand) | m | 10-3 | Thousandth/Thousandth |
| mikro (gr. Mikros – small) | µ | 10-6 | Millionth/Millionth |
| nano (gr. Nanos – dwarf) | n | 10-9 | Milliardth/Billionth |
| pico (it. Piccolo – small) | p | 10-12 | Billionth/Trillionth |
| femto (den. Femten – fifteen) | f | 10-15 | Billiardth/Quadrillionth |
| atto (den. Atten – eighteen) | a | 10-18 | Trillionth/Quintillionth |
zepto (lat.
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Septem – seven) | z | 10-21 | Trilliardth/Sextillionth |
| yokto (gr. Okto – eight) | y | 10-24 | Quadrillionth/Septillionth |
| 1 | one | /wʌn/ |
| 2 | two | /tu:/ |
| 3 | three | /θri:/ |
| 4 | four | /fɔː/ |
| 5 | five | /faɪv/ |
| 6 | six | /sɪks/ |
| 7 | seven | /’sevən/ |
| 8 | eight | /eɪt/ |
| 9 | nine | /naɪn/ |
| 10 | ten | /ten/ |
| 11 | eleven | /ɪ’levən/ |
| 12 | twelve | /twelv/ |
| 13 | thirteen | /θɜ:’ti:n/ |
| 14 | fourteen | /fɔː’ti:n/ |
| 15 | fifteen | /fɪf’ti:n/ |
| 16 | sixteen | /sɪkst’i:n/ |
| 17 | seventeen | /seven’ti:n/ |
| 18 | eighteen | /eɪ’ti:n/ |
| 19 | nineteen | /naɪn’ti:n/ |
| 20 | twenty | /’twentɪ/ |
| 21 | twenty-one | /twentɪ’wʌn/ |
| 22 | twenty-two | /twentɪ’tu:/ |
| 23 | twenty-three | /twentɪ’θri:/ |
| 24 | twenty-four | /twentɪ’fɔː/ |
| 25 | twenty-five | /twentɪ’faɪv/ |
| 26 | twenty-six | /twentɪ’sɪks/ |
| 27 | twenty-seven | /twentɪ’sevən/ |
| 28 | twenty-eight | /twentɪ’eɪt/ |
| 29 | twenty-nine | /twentɪ’naɪn/ |
| 30 | thirty | /’θɜ:tɪ/ |
| 40 | forty | /’fɔːtɪ/ |
| 50 | fifty | /’fɪftɪ/ |
| 60 | sixty | /’sɪkstɪ/ |
| 70 | seventy | /’sevəntɪ/ |
| 80 | eighty | /’eɪtɪ/ |
| 90 | ninety | /’naɪntɪ/ |
| 100 | a hundred; one hundred | /ə ‘hʌndrəd/ /wʌn ‘hʌndrəd/ |
| 101 | a hundred and one | /ə ‘hʌndrəd ən wʌn/ |
| 102 | a hundred and two | /ə ‘hʌndrəd ən tu:/ |
| 110 | a hundred and ten | /ə ‘hʌndrəd ən ten/ |
| 120 | a hundred & twenty | /ə ‘hʌndrəd ən ‘twentɪ/ |
| 200 | two hundred | /tu: ‘hʌndrəd/ |
| 300 | three hundred | /θri: ‘hʌndrəd/ |
| 400 | four hundred | /fɔː ‘hʌndrəd/ |
| 500 | five hundred | /faɪv ‘hʌndrəd/ |
| 600 | six hundred | /sɪks ‘hʌndrəd/ |
| 700 | seven hundred | /’sevən ‘hʌndrəd/ |
| 800 | eight hundred | /eɪt ‘hʌndrəd/ |
| 900 | nine hundred | /naɪn ‘hʌndrəd/ |
| 1 000 | a thousand, one thousand | /ə θ’ɑʊzənd/ /wʌn ‘θɑʊzənd/ |
| 1 001 | a thousand và one | /ə ‘θɑʊzənd ən wʌn/ |
| 1 010 | a thousand và ten | /ə ‘θɑʊzənd ən ten/ |
| 1 020 | a thousand và twenty | /ə ‘θɑʊzənd ən ‘twentɪ/ |
| 1 100 | one thousand, one hunded | /wʌn ‘θɑʊzənd wʌn ‘hʌndrəd/ |
| 1 101 | one thousand, one hundred và one | /wʌn ‘θɑʊzənd wʌn ‘hʌndrəd ən wʌn/ |
| 1 110 | one thousand, one hundred and ten | /wʌn ‘θɑʊzənd wʌn ‘hʌndrəd ən ten/ |
| 9 999 | nine thousand, nine hundred and ninety-nine | /naɪn ‘θɑʊzənd naɪn ‘hʌndrəd ən ‘naɪntɪ ‘naɪn/ |
| 10 000 | ten thousand | /ten ‘θɑʊzənd/ |
| 15 356 | fifteen thousand, three hundred and fifty six | /’fɪfti:n ‘θɑʊzənd θri: ‘hʌndrəd ən ‘fɪftɪ sɪks/ |
| 100 000 | a hundred thousand | /ə ‘hʌndrəd ‘θɑʊzənd/ |
| 1 000 000 | a million | /ə ‘mɪljən/ |
| 100 000 000 | a hundred million | /ə ‘hʌndrəd ‘mɪljən/ |
| 1 000 000 000 | a billion | /ə ‘bɪljən/ |
| 100 000 000 000 | a hundred billion | /ə ‘hʌndrəd ‘bɪljən/ |
| 1 000 000 000 000 | a trillion | /ə ‘trɪljən/ |
| 1 000 000 000 000 000 | a quadrillion | /ə kwɒdrɪljən/ |
| 1 000 000 000 000 000 000 | a quintillian | /ə kwɪn’tɪljən/ |
| 1 000 000 000 000 000 000 000 | a sextillion | /ə seks’tɪljən/ |
| 1 000 000 000 000 000 000 000 000 | a septillion | /ə sep’tɪljən/ |
| 1 000 000 000 000 000 000 000 000 000 | an ocillion | /ən ɒkt’tɪljən/ |
| 1 000 000 000 000 000 000 000 000 000 000 | a nonillion | /ə nɒn’ɪljən/ |
| 1 000 000 000 000 000 000 000 000 000 000 000 | a decillion | /ə de’sɪljən/ |