Jump rope skipping may be used as a cardiovascular workout, similar to jogging or bicycle riding, and has a high MET or intensity level. This aerobic exercise can achieve a “burn rate” of up to 700 to over 1200 calories per hour of vigorous activity, with about 0.1 to nearly 1.1 calories consumed per jump, mainly depending upon the speed and intensity of jumps and leg foldings. Ten minutes of skipping are roughly the equivalent of running an eight-minute mile. Jump rope skipping for 15–20 minutes is enough to burn off the calories from a candy bar and is equivalent to 45–60 minutes of running, depending upon the intensity of jumps and leg swings. Many professional trainers, fitness experts, and professional fighters greatly recommend skipping for burning fat over any other alternative exercises like running and jogging.[1]https://www.webmd.com/fitness-exercise/features/skip-rope-not-your-workout#1
With the rate of 70 times/min, 1000 jumps will take you 14 minutes and 17 seconds. If you are presistent enough and do 1,000 jump rope skips a day for a whole month, you can do 1,000 jump ropes in 390 seconds, or six-and-a-half minutes.[2] https://www.menshealth.com/fitness/a30454142/jump-rope-dudes-skip-1000-times-every-day/