Are you doing other exercise besides walking and would like to convert it to steps?
For example, according to Shapeup.org:
“Question: How do you convert time on a bike to steps? I have a Schwinn airdyne.
Answer: If you have a Schwinn airdyne that has a calorie readout, then all you need to know is that walking one mile is equivalent (approximately) to burning 100 calories. If you exercise on your Schwinn airdyne long enough to burn 100 calories, that is like walking 2000 steps. To burn the equivalent of walking 10,000 steps, you would have to exercise long enough to burn 500 calories.”