Please read the following table in HTML format from a webpage and then answer the question in detail according to the table. Each table cell is defined by a <td> and a </td> tag. Each table row starts with a <tr> and ends with a </tr> tag. 'rowspan=m' and 'colspan=n' represents a cell spaning over 'm' rows and 'n' columns.

Webpage title:
Otoyol 7
Table title:
Exit list
Table:
<table id='hittask' contenteditable='False'>
<tr> <th colspan=1 rowspan=1 > Province </th><th colspan=1 rowspan=1 > District </th><th colspan=1 rowspan=1 > km </th><th colspan=1 rowspan=1 > mi </th><th colspan=1 rowspan=1 > Exit </th><th colspan=1 rowspan=1 > Destination </th><th colspan=1 rowspan=1 > Notes </th></tr>
<tr> <td class="highlighted"  colspan=1 rowspan=17 > Istanbul </td><td colspan=1 rowspan=4 > Eyüp </td><td colspan=1 rowspan=1 > 0.0 </td><td colspan=1 rowspan=1 > 0.0 </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 > Işıklar-Ağaçlı Rd. — Ağaçlı </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=1 > 1.3 </td><td colspan=1 rowspan=1 > 0.8 </td><td colspan=1 rowspan=1 > K1 </td><td colspan=1 rowspan=1 > — Sancaktepe, Istanbul </td><td colspan=1 rowspan=1 > via Yavuz Sultan Selim Bridge </td></tr>
<tr> <td colspan=1 rowspan=1 > 4.6 </td><td colspan=1 rowspan=1 > 2.9 </td><td colspan=1 rowspan=1 > K15 </td><td colspan=1 rowspan=1 > D-020 </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=1 > 6.3 </td><td colspan=1 rowspan=1 > 3.9 </td><td colspan=3 rowspan=1 > Işıklar Toll Plaza </td></tr>
<tr> <td colspan=1 rowspan=1 > Arnavutköy </td><td colspan=1 rowspan=1 > 13.2 </td><td colspan=1 rowspan=1 > 8.2 </td><td colspan=1 rowspan=1 > K14 </td><td colspan=1 rowspan=1 > Arnavutköy-Habibler Rd. - Fenertepe </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=6 > Başakşehir </td><td colspan=1 rowspan=1 > 17.3 </td><td colspan=1 rowspan=1 > 10.7 </td><td colspan=1 rowspan=1 > K12 </td><td colspan=1 rowspan=1 > Kanuni Sultan Süleyman Rd. </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=1 > 19.7 </td><td colspan=1 rowspan=1 > 12.2 </td><td colspan=1 rowspan=1 > K11 </td><td colspan=1 rowspan=1 > 2720 St. </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=1 > 20.9 </td><td colspan=1 rowspan=1 > 13.0 </td><td colspan=1 rowspan=1 > K10 </td><td colspan=1 rowspan=1 > 677/19 St. </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=1 > 21.5 </td><td colspan=1 rowspan=1 > 13.4 </td><td colspan=1 rowspan=1 > K9 </td><td colspan=1 rowspan=1 > Süleyman Demirel Blvd. </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=2 > 21.7 </td><td colspan=1 rowspan=2 > 13.5 </td><td colspan=1 rowspan=2 > K19 </td><td colspan=1 rowspan=1 > West — Edirne </td><td colspan=1 rowspan=1 > Toll otoyol </td></tr>
<tr> <td colspan=1 rowspan=1 > East — Fatih </td><td colspan=1 rowspan=1 > Connection to the and </td></tr>
<tr> <td colspan=1 rowspan=1 > Bağcılar </td><td colspan=1 rowspan=1 > 23.5 </td><td colspan=1 rowspan=1 > 14.6 </td><td colspan=1 rowspan=1 > K181 </td><td colspan=1 rowspan=1 > Halkalı Ave. </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=3 > Bahçelievler </td><td colspan=1 rowspan=1 > 25.5 </td><td colspan=1 rowspan=1 > 15.8 </td><td colspan=1 rowspan=1 > K182 </td><td colspan=1 rowspan=1 > Mimar Sinan Ave. </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=1 > 28.1 </td><td colspan=1 rowspan=1 > 17.5 </td><td colspan=1 rowspan=1 > K183 </td><td colspan=1 rowspan=1 > Değirmenbahçe Ave. </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=1 > 29.4 </td><td colspan=1 rowspan=1 > 18.3 </td><td colspan=1 rowspan=1 > K184 </td><td colspan=1 rowspan=1 > Sanayi Ave. </td><td colspan=1 rowspan=1 > Northbound exit, southbound entrance and exit </td></tr>
<tr> <td colspan=1 rowspan=2 > Bakırköy </td><td colspan=1 rowspan=1 > 30.1 </td><td colspan=1 rowspan=1 > 18.7 </td><td colspan=1 rowspan=1 > K185 </td><td colspan=1 rowspan=1 > D-100 — Çobançeşme </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td class="highlighted"  colspan=1 rowspan=1 > 31.7 </td><td class="highlighted"  colspan=1 rowspan=1 > 19.7 </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 > Atatürk Havalimanı Ave. — Atatürk Int. Airport </td><td colspan=1 rowspan=1 > Transition into Boulevard </td></tr>
</table>
Question:
How long is Istanbul's Otoyol 7 in kilometers, and how long is it in miles?
Answer:
Otoyol 7 in Istanbul, is 31.7 km (19.7 mi) long.