The marathon is 42 Km long
42 km
42
approx 42 Km
~12% = 5 km / 42 km
42 kilometers
The Olympic marathon is exactly 42.195 km long
The famous messenger run from Marathon to Athens, which is about 42 km, to inform the Athenians that they had won against the Persians.
42 km equates to about 26.1 miles.
42.195 Km in a Marathon
About 26.2 miles or 42.16 Km
26.2 miles or 42.2 km.