Oedran ystadegol ystadegol y teiars yn dibynnu ar y wlad. Mae'r ystadegau hyn yn seiliedig ar ddata a gyflwynwyd gan ddefnyddwyr gwefan CheckTire.com.
| Gwlad | nifer y defnyddiau | Oedran cyfartalog y teiars |
|---|---|---|
| 🇸🇦 Saudi Arabia | 171979 | 4.90 |
| 🇺🇸 Unol Daleithiau | 113540 | 8.53 |
| 🇨🇦 Canada | 27673 | 8.11 |
| 🇴🇲 Oman | 13439 | 4.05 |
| 🇦🇺 Awstralia | 12986 | 9.57 |
| 🇬🇧 Y Deyrnas Unedig | 11237 | 8.52 |
| 🇧🇬 Bwlgaria | 8293 | 7.61 |
| 🇳🇱 Yr Iseldiroedd | 7913 | 10.71 |
| 🇷🇴 Rwmania | 7492 | 6.98 |
| 🇰🇼 Kuwait | 7132 | 5.30 |
| 🇦🇪 Emiradau Arabaidd Unedig | 6545 | 4.65 |
| 🇮🇶 Irac | 5544 | 5.72 |
| 🇮🇳 India | 3671 | 2.56 |
| 🇩🇪 Yr Almaen | 3583 | 7.73 |
| 🇲🇾 Malaysia | 3496 | 3.23 |
| 🇵🇭 Philippines | 3313 | 4.50 |
| 🇭🇺 Hwngari | 2948 | 8.68 |
| 🇧🇭 Bahrain | 2440 | 5.00 |
| 🇶🇦 Qatar | 2185 | 4.87 |
| 🇪🇬 Yr Aifft | 2029 | 7.04 |
| 🇭🇷 Croatia | 1911 | 6.37 |
| 🇪🇪 Estonia | 1829 | 8.64 |
| 🇷🇸 Serbia | 1829 | 7.70 |
| 🇵🇱 Gwlad Pwyl | 1791 | 9.72 |
| 🇸🇪 Sweden | 1772 | 8.72 |
| 🇯🇴 Gwlad yr Iorddonen | 1472 | 6.03 |
| 🇸🇮 Slofenia | 1446 | 7.11 |
| 🇸🇬 Singapore | 1371 | 3.83 |
| 🇫🇮 Y Ffindir | 1348 | 11.99 |
| 🇨🇿 Gweriniaeth Tsiec | 1315 | 8.62 |
| 🇧🇪 Gwlad Belg | 1283 | 9.66 |
| 🇹🇷 Twrci | 1250 | 9.94 |
| 🇮🇹 Yr Eidal | 1222 | 7.54 |
| 🇮🇷 Iran | 1210 | 11.43 |
| 🇱🇾 Libya | 1137 | 6.52 |
| 🇹🇭 Gwlad Thai | 1069 | 9.46 |
| 🇩🇰 Denmarc | 1056 | 9.62 |
| 🇫🇷 Ffrainc | 1048 | 9.05 |
| 🇾🇪 Yemen | 1009 | 6.63 |
| 🇷🇺 Rwsia | 988 | 11.92 |
| 🇬🇷 Gwlad Groeg | 973 | 5.71 |
| 🇳🇴 Norwy | 924 | 9.17 |
| 🇧🇦 Bosnia a Herzegovina | 859 | 10.04 |
| 🇮🇱 Israel | 843 | 5.23 |
| 🇱🇹 Lithwania | 793 | 7.60 |
| 🇩🇿 Algeria | 780 | 8.39 |
| 🇻🇳 Fietnam | 759 | 7.79 |
| 🇸🇰 Slofacia | 758 | 7.82 |
| 🇺🇦 Wcráin | 723 | 11.40 |
| 🇧🇷 Brasil | 687 | 11.14 |
| 🇲🇽 Mecsico | 671 | 7.11 |
| 🇵🇰 Pacistan | 655 | 6.04 |
| 🇨🇭 Swistir | 625 | 7.92 |
| 🇱🇧 Libanus | 493 | 6.76 |
| 🇦🇹 Awstria | 466 | 6.76 |
| 🇳🇬 Nigeria | 454 | 4.66 |
| 🇪🇸 Sbaen | 440 | 8.46 |
| 🇳🇿 Seland Newydd | 431 | 9.94 |
| 🇲🇦 Moroco | 429 | 7.61 |
| 🇮🇩 Indonesia | 395 | 9.69 |
| 🇸🇩 Sudan | 380 | 7.77 |
| 🇬🇪 Georgia | 350 | 9.40 |
| 🇱🇰 Sri Lanka | 350 | 5.64 |
| 🇹🇳 Tiwnisia | 340 | 7.55 |
| 🇮🇪 Iwerddon | 338 | 8.72 |
| 🇿🇦 De Affrica | 329 | 5.74 |
| 🇱🇻 Latfia | 321 | 8.23 |
| 🇹🇼 Taiwan | 307 | 4.76 |
| 🇧🇩 Bangladesh | 299 | 11.42 |
| 🇵🇹 Portiwgal | 290 | 11.17 |
| 🇭🇰 Hong Kong | 289 | 8.94 |
| 🇵🇸 Palestina | 227 | 6.82 |
| 🇮🇸 Gwlad yr Iâ | 225 | 10.31 |
| 🇰🇷 De Corea | 216 | 7.05 |
| 🇲🇰 Gogledd Macedonia | 212 | 7.91 |
| 🇲🇲 Myanmar | 211 | 7.97 |
| 🇵🇷 Puerto Rico | 204 | 6.74 |
| 🇰🇭 Cambodia | 195 | 8.19 |
| 🇯🇵 Japan | 185 | 5.75 |
| 🇦🇱 Albania | 173 | 5.96 |
| 🇧🇳 Brunei | 152 | 5.16 |
| 🇨🇳 China | 148 | 13.33 |
| 🇹🇹 Trinidad a Tobago | 138 | 5.01 |
| 🇰🇪 Kenya | 123 | 4.89 |
| 🇦🇷 Yr Ariannin | 122 | 8.35 |
| 🇬🇭 Ghana | 118 | 8.40 |
| 🇲🇪 Montenegro | 116 | 6.36 |
| 🇧🇾 Belarus | 115 | 12.12 |
| 🇩🇴 Dominicana | 115 | 8.78 |
| 🇨🇴 Colombia | 110 | 8.71 |
| 🇸🇾 Syria | 102 | 7.44 |
| 🇨🇱 Chile | 98 | 11.94 |
| 🇱🇺 Lwcsembwrg | 96 | 8.52 |
| 🇦🇴 Angola | 95 | 5.31 |
| 🇦🇿 Azerbaijan | 95 | 9.24 |
| 🇹🇿 Tanzania | 92 | 5.07 |
| 🇲🇩 Moldofa | 86 | 6.96 |
| 🇲🇳 Mongolia | 86 | 9.82 |
| 🇨🇾 Cyprus | 82 | 3.73 |
| 🇲🇷 Mauritania | 72 | 8.69 |
| 🇲🇹 Malta | 68 | 6.75 |
| 🇲🇺 Mauritius | 64 | 5.75 |
| 🇳🇵 Nepal | 61 | 18.51 |
| 🇭🇳 Honduras | 57 | 8.83 |
| 🇯🇲 Jamaica | 57 | 6.98 |
| 🇵🇪 Periw | 57 | 7.98 |
| 🇰🇿 Kazakhstan | 56 | 11.75 |
| 🇻🇪 Venezuela | 52 | 9.12 |
| 🇨🇷 Costa Rica | 46 | 9.58 |
| 🇦🇫 Affghanistan | 44 | 7.24 |
| 🇦🇲 Armenia | 40 | 11.56 |
| 🇵🇦 Panama | 40 | 6.05 |
| 🇬🇺 Guam | 38 | 9.60 |
| 🇬🇹 Guatemala | 37 | 10.74 |
| 🇵🇾 Paraguay | 37 | 9.16 |
| 🇧🇿 Belize | 34 | 5.46 |
| 🇪🇨 Ecwador | 34 | 10.18 |
| 🇪🇹 Ethiopia | 34 | 14.90 |
| 🇨🇼 Curaçao | 32 | 6.92 |
| 🇬🇾 Guyana | 31 | 10.27 |
| 🇺🇿 Uzbekistan | 29 | 11.77 |
| 🇸🇻 El Salvador | 28 | 6.39 |
| 🇺🇬 Uganda | 26 | 4.74 |
| 🇳🇦 Namibia | 25 | 5.86 |
| 🇳🇮 Nicaragua | 23 | 7.50 |
| 🇸🇴 Somalia | 20 | 7.72 |
| 🇺🇾 Uruguay | 18 | 17.87 |
| 🇧🇧 Barbados | 17 | 3.62 |
| 🇸🇳 Senegal | 16 | 8.64 |
| 🇩🇯 Djibouti | 15 | 3.18 |
| 🇲🇴 Macau | 15 | 8.69 |
| 🇿🇲 Zambia | 15 | 5.50 |
| 🇮🇲 Ynys Manaw | 13 | 12.32 |
| 🇱🇦 Laos | 13 | 15.54 |
| 🇲🇿 Mozambique | 13 | 9.30 |
| 🇸🇷 Swrinam | 13 | 5.13 |
| 🇧🇴 Bolifia | 9 | 14.04 |
| 🇧🇹 Bhutan | 9 | 6.71 |
| 🇧🇼 Botswana | 8 | 3.53 |
| 🇲🇱 Mali | 8 | 3.28 |
| 🇲🇼 Malawi | 8 | 6.60 |
| 🇰🇬 Kyrgyzstan | 7 | 13.72 |
| 🇻🇬 Ynysoedd Virgin (DU) | 7 | 5.20 |
| 🇦🇬 Antigua a Barbuda | 6 | 7.93 |
| 🇧🇸 Bahamas | 6 | 11.67 |
| 🇯🇪 Ynys Jersey | 6 | 3.69 |
| 🇱🇨 Saint Lucia | 6 | 6.35 |
| 🇳🇪 Niger | 6 | 7.07 |
| 🇹🇲 Turkmenistan | 6 | 12.11 |
| 🇹🇯 Tajikistan | 5 | 7.38 |
| 🇽🇰 Kosovo | 5 | 1.99 |
| 🇦🇽 Ynysoedd Åland | 4 | 10.79 |
| 🇪🇺 Yr Undeb Ewropeaidd | 4 | 14.84 |
| 🇱🇷 Liberia | 4 | 10.62 |
| 🇷🇼 Rwanda | 4 | 7.72 |
| 🇦🇼 Aruba | 3 | 4.94 |
| 🇩🇲 Dominica | 3 | 18.68 |
| 🇫🇴 Ynysoedd Ffaro | 3 | 19.36 |
| 🇬🇮 Gibraltar | 3 | 5.70 |
| 🇬🇲 Gambia | 3 | 8.97 |
| 🇬🇳 Gini | 3 | 14.75 |
| 🇭🇹 Haiti | 3 | 10.97 |
| 🇸🇽 Sint Maarten | 3 | 5.69 |
| 🇿🇼 Zimbabwe | 3 | 17.30 |
| 🇧🇫 Burkina Faso | 2 | 21.29 |
| 🇧🇯 Benin | 2 | 7.42 |
| 🇫🇯 Ffiji | 2 | 1.68 |
| 🇬🇬 Guernsey | 2 | 14.11 |
| 🇲🇨 Monaco | 2 | 4.33 |
| 🇲🇵 Ynysoedd Gogledd Mariana | 2 | 4.77 |
| 🇲🇻 Maldives | 2 | 7.15 |
| 🇦🇸 Samoa Americanaidd | 1 | 1.33 |
| 🇰🇲 Comoros | 1 | 5.04 |
| 🇰🇳 Saint Kitts a Nevis | 1 | 0.57 |
| 🇰🇾 Ynysoedd Cayman | 1 | 10.06 |
| 🇲🇬 Madagascar | 1 | 2.03 |
| 🇳🇨 Caledonia Newydd | 1 | 2.61 |
| 🇵🇬 Papwa Gini Newydd | 1 | 1.30 |
| 🇸🇨 Seychelles | 1 | 23.87 |
| 🇻🇨 Saint Vincent a'r Grenadines | 1 | 1.04 |