A lot depends on whether you are a beginner or expert. 35 miles is the recommendation for first timers taking it easy; 70 miles is recommended for those who want to finish near the top. Here is a lot more info on training for your first marathon: http://www.findingdulcinea.com/features/feature-articles/2008/august/Get-Your-Marathon-On.html
There are 26 miles in a marathon.
There are 26.2 miles in a full marathon, thus there are 13.1 miles in a half marathon. No odd calculations... a half marathon is a half marathon.
A half-marathon is 13.1 miles long.
There are many marathon training plans available online. Many are aimed at beginners who have little or no experience with running. Almost with no exception these plans focus on easy running only and get you to run 20 miles once or twice during the training cycle. This generally leaves you under-prepared for the marathon. A good marathon training plan combines easy running with faster running (tempo running and intervals). It also contains test runs / training races that give you a good sense of what you are capable of on race day. One of the best marathon training programs available today is 100 Day Marathon Plan by Marius Bakken. The approach is modern and fresh. In addition to several different marathon running programs sorted by finish time his program also contains videos, written information and the ability to ask questions. An older good marathon training program is Advanced Marathoning by Pfitzinger and Douglas. Their marathon plans are sorted based on the number of miles you want to do and is accompanied by an enormous amount of useful information.
A 15k marathon is just 15 kilometers, or roughly 9.3 miles.
about 3,100 miles
26.2 miles
26.2
10
26 miles 385 yards
369 miles
26.2 miles. Every marathon is that long.