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 | 186451 | 4.84 |
| 🇺🇸 Unol Daleithiau | 136441 | 8.62 |
| 🇨🇦 Canada | 34914 | 8.25 |
| 🇦🇺 Awstralia | 14317 | 9.61 |
| 🇴🇲 Oman | 14304 | 4.03 |
| 🇬🇧 Y Deyrnas Unedig | 12800 | 8.57 |
| 🇧🇬 Bwlgaria | 10498 | 7.63 |
| 🇳🇱 Yr Iseldiroedd | 9929 | 11.01 |
| 🇷🇴 Rwmania | 8856 | 7.01 |
| 🇰🇼 Kuwait | 7780 | 5.15 |
| 🇦🇪 Emiradau Arabaidd Unedig | 7042 | 4.67 |
| 🇮🇶 Irac | 5914 | 5.75 |
| 🇩🇪 Yr Almaen | 5073 | 8.21 |
| 🇮🇳 India | 4221 | 2.67 |
| 🇲🇾 Malaysia | 3848 | 3.43 |
| 🇵🇭 Philippines | 3843 | 4.55 |
| 🇵🇱 Gwlad Pwyl | 3532 | 10.89 |
| 🇭🇺 Hwngari | 3320 | 8.84 |
| 🇶🇦 Qatar | 2595 | 4.53 |
| 🇧🇭 Bahrain | 2581 | 4.94 |
| 🇸🇪 Sweden | 2427 | 8.78 |
| 🇪🇪 Estonia | 2380 | 9.07 |
| 🇷🇸 Serbia | 2308 | 7.70 |
| 🇭🇷 Croatia | 2290 | 6.58 |
| 🇪🇬 Yr Aifft | 2282 | 6.91 |
| 🇫🇮 Y Ffindir | 1928 | 13.06 |
| 🇸🇮 Slofenia | 1690 | 7.32 |
| 🇯🇴 Gwlad yr Iorddonen | 1587 | 6.17 |
| 🇨🇿 Gweriniaeth Tsiec | 1555 | 8.88 |
| 🇧🇪 Gwlad Belg | 1538 | 10.22 |
| 🇸🇬 Singapore | 1476 | 3.95 |
| 🇮🇹 Yr Eidal | 1446 | 7.73 |
| 🇮🇷 Iran | 1381 | 11.79 |
| 🇹🇷 Twrci | 1370 | 9.85 |
| 🇷🇺 Rwsia | 1366 | 11.43 |
| 🇹🇭 Gwlad Thai | 1335 | 8.99 |
| 🇩🇰 Denmarc | 1253 | 9.43 |
| 🇱🇾 Libya | 1249 | 6.34 |
| 🇫🇷 Ffrainc | 1235 | 9.46 |
| 🇾🇪 Yemen | 1135 | 6.41 |
| 🇬🇷 Gwlad Groeg | 1103 | 5.85 |
| 🇳🇴 Norwy | 1093 | 9.95 |
| 🇧🇦 Bosnia a Herzegovina | 1036 | 9.63 |
| 🇮🇱 Israel | 989 | 5.39 |
| 🇸🇰 Slofacia | 926 | 7.91 |
| 🇱🇹 Lithwania | 914 | 7.81 |
| 🇲🇽 Mecsico | 906 | 6.83 |
| 🇻🇳 Fietnam | 857 | 7.67 |
| 🇧🇷 Brasil | 848 | 10.94 |
| 🇩🇿 Algeria | 848 | 8.56 |
| 🇨🇭 Swistir | 794 | 7.97 |
| 🇺🇦 Wcráin | 771 | 11.28 |
| 🇹🇼 Taiwan | 732 | 4.72 |
| 🇵🇰 Pacistan | 718 | 6.49 |
| 🇦🇹 Awstria | 564 | 7.19 |
| 🇱🇧 Libanus | 551 | 6.77 |
| 🇪🇸 Sbaen | 539 | 8.05 |
| 🇳🇬 Nigeria | 534 | 4.61 |
| 🇲🇦 Moroco | 491 | 7.47 |
| 🇳🇿 Seland Newydd | 465 | 9.95 |
| 🇮🇩 Indonesia | 446 | 9.35 |
| 🇸🇩 Sudan | 401 | 7.65 |
| 🇮🇪 Iwerddon | 397 | 8.87 |
| 🇱🇰 Sri Lanka | 392 | 5.76 |
| 🇹🇳 Tiwnisia | 392 | 7.50 |
| 🇱🇻 Latfia | 386 | 9.06 |
| 🇬🇪 Georgia | 384 | 9.53 |
| 🇿🇦 De Affrica | 368 | 5.94 |
| 🇧🇩 Bangladesh | 354 | 11.42 |
| 🇲🇲 Myanmar | 348 | 7.79 |
| 🇵🇹 Portiwgal | 347 | 11.10 |
| 🇭🇰 Hong Kong | 333 | 9.21 |
| 🇮🇸 Gwlad yr Iâ | 293 | 10.24 |
| 🇯🇵 Japan | 265 | 6.33 |
| 🇵🇸 Palestina | 251 | 6.60 |
| 🇰🇷 De Corea | 248 | 7.15 |
| 🇲🇰 Gogledd Macedonia | 247 | 8.17 |
| 🇰🇭 Cambodia | 237 | 8.91 |
| 🇦🇱 Albania | 235 | 6.00 |
| 🇵🇷 Puerto Rico | 224 | 6.93 |
| 🇨🇳 China | 198 | 13.08 |
| 🇧🇳 Brunei | 184 | 4.95 |
| 🇦🇷 Yr Ariannin | 145 | 8.70 |
| 🇹🇹 Trinidad a Tobago | 144 | 4.93 |
| 🇬🇭 Ghana | 142 | 8.53 |
| 🇩🇴 Dominicana | 139 | 8.12 |
| 🇰🇪 Kenya | 134 | 5.34 |
| 🇲🇪 Montenegro | 134 | 7.06 |
| 🇧🇾 Belarus | 129 | 12.21 |
| 🇱🇺 Lwcsembwrg | 125 | 8.38 |
| 🇨🇴 Colombia | 119 | 8.61 |
| 🇦🇿 Azerbaijan | 118 | 9.09 |
| 🇨🇱 Chile | 113 | 12.01 |
| 🇸🇾 Syria | 112 | 7.40 |
| 🇲🇳 Mongolia | 104 | 10.09 |
| 🇹🇿 Tanzania | 102 | 5.13 |
| 🇲🇩 Moldofa | 99 | 6.96 |
| 🇨🇾 Cyprus | 98 | 3.78 |
| 🇦🇴 Angola | 97 | 5.40 |
| 🇲🇺 Mauritius | 85 | 5.72 |
| 🇲🇹 Malta | 83 | 7.08 |
| 🇲🇷 Mauritania | 75 | 9.26 |
| 🇳🇵 Nepal | 71 | 18.11 |
| 🇭🇳 Honduras | 68 | 9.19 |
| 🇵🇪 Periw | 66 | 7.77 |
| 🇰🇿 Kazakhstan | 63 | 11.42 |
| 🇯🇲 Jamaica | 60 | 6.71 |
| 🇻🇪 Venezuela | 60 | 10.96 |
| 🇨🇷 Costa Rica | 59 | 8.96 |
| 🇵🇦 Panama | 52 | 6.25 |
| 🇦🇫 Affghanistan | 48 | 7.73 |
| 🇬🇹 Guatemala | 48 | 10.57 |
| 🇦🇲 Armenia | 44 | 12.26 |
| 🇵🇾 Paraguay | 43 | 9.11 |
| 🇧🇿 Belize | 41 | 5.26 |
| 🇪🇨 Ecwador | 40 | 9.77 |
| 🇪🇹 Ethiopia | 40 | 14.98 |
| 🇬🇺 Guam | 39 | 9.36 |
| 🇸🇻 El Salvador | 36 | 10.29 |
| 🇺🇿 Uzbekistan | 35 | 10.85 |
| 🇨🇼 Curaçao | 34 | 6.60 |
| 🇬🇾 Guyana | 31 | 10.27 |
| 🇳🇮 Nicaragua | 30 | 10.09 |
| 🇺🇬 Uganda | 29 | 4.54 |
| 🇳🇦 Namibia | 26 | 5.65 |
| 🇸🇴 Somalia | 23 | 8.46 |
| 🇲🇴 Macau | 21 | 6.88 |
| 🇺🇾 Uruguay | 20 | 17.23 |
| 🇧🇧 Barbados | 18 | 3.68 |
| 🇱🇦 Laos | 17 | 18.34 |
| 🇸🇳 Senegal | 16 | 8.64 |
| 🇿🇲 Zambia | 16 | 5.22 |
| 🇧🇼 Botswana | 15 | 11.08 |
| 🇩🇯 Djibouti | 15 | 3.18 |
| 🇸🇷 Swrinam | 15 | 6.56 |
| 🇲🇿 Mozambique | 14 | 8.87 |
| 🇮🇲 Ynys Manaw | 13 | 12.32 |
| 🇧🇴 Bolifia | 9 | 14.04 |
| 🇧🇹 Bhutan | 9 | 6.71 |
| 🇰🇬 Kyrgyzstan | 8 | 12.46 |
| 🇲🇱 Mali | 8 | 3.28 |
| 🇲🇼 Malawi | 8 | 6.60 |
| 🇦🇬 Antigua a Barbuda | 7 | 10.29 |
| 🇧🇸 Bahamas | 7 | 10.59 |
| 🇳🇪 Niger | 7 | 6.20 |
| 🇻🇬 Ynysoedd Virgin (DU) | 7 | 5.20 |
| 🇯🇪 Ynys Jersey | 6 | 3.69 |
| 🇱🇨 Saint Lucia | 6 | 6.35 |
| 🇹🇲 Turkmenistan | 6 | 12.11 |
| 🇹🇯 Tajikistan | 5 | 7.38 |
| 🇽🇰 Kosovo | 5 | 1.99 |
| 🇦🇼 Aruba | 4 | 3.90 |
| 🇦🇽 Ynysoedd Åland | 4 | 10.79 |
| 🇩🇲 Dominica | 4 | 16.48 |
| 🇪🇺 Yr Undeb Ewropeaidd | 4 | 14.84 |
| 🇬🇲 Gambia | 4 | 11.86 |
| 🇭🇹 Haiti | 4 | 16.74 |
| 🇱🇷 Liberia | 4 | 10.62 |
| 🇲🇻 Maldives | 4 | 10.56 |
| 🇷🇼 Rwanda | 4 | 7.72 |
| 🇫🇴 Ynysoedd Ffaro | 3 | 19.36 |
| 🇬🇮 Gibraltar | 3 | 5.70 |
| 🇬🇳 Gini | 3 | 14.75 |
| 🇲🇬 Madagascar | 3 | 8.42 |
| 🇸🇽 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 |
| 🇸🇨 Seychelles | 2 | 15.54 |
| 🇦🇸 Samoa Americanaidd | 1 | 1.33 |
| 🇰🇲 Comoros | 1 | 5.04 |
| 🇰🇳 Saint Kitts a Nevis | 1 | 0.57 |
| 🇰🇾 Ynysoedd Cayman | 1 | 10.06 |
| 🇳🇨 Caledonia Newydd | 1 | 2.61 |
| 🇵🇬 Papwa Gini Newydd | 1 | 1.30 |
| 🇻🇨 Saint Vincent a'r Grenadines | 1 | 1.04 |