ANSWER: Lions can reach a top speed of 48 to 59 kilometers per hour. That is 30 to 37 miles per hour (mph). Lions are said to have poor stamina. They puff and pant after a fast run over 100 yards. The lion has longer limbs in relation to overall size than the tiger but it is not a specialist runner. The lion's limbs are more a weapon than as a means of transport!
At top speed and with a flying start the lion would run the 100 yards in 5.5 seconds. From a standing start the cheetah can run the 100 yards in about 6 seconds.
The speed of the lion was assessed by George Beals Schalle, an American naturalist born 1933.