I meter is 39.37 inches. If you ignore the 0.37 inches, one meter is very close to 3.25 feet. Or, every 4 meters is very close to 13 feet. (Better than the cruder approximation of 1 meter = 3 feet, which would imply 4 meters =12 feet.) So, 1000 meters is 250 groups of 4 meters. So the answer is very nearly 250x13=3250 feet. Compare with the more exact answer given by Jonathan, 3280.84, about 1% more than 3250.