vs
In terms of relative calorie burn, running burns roughly 130% more calories than walking.
Below is a more accurate calorie burn for running vs walking to lose weight (the difference between the 2). Running will very roughly halve the time spent for the same calorie burn.
To lose 1lb a week, on an average day you should burn around 500 calories more than you eat. To burn this by walking at 3 mph will take Around 2 hours and around 60,000 steps every day (just under 6 miles).
If time is an issue, as for most of us, there may be better choices than walking, running being one.
Difference in Calories based on Time and Weight.
Calories Burned in 2 hours
Weight 100lb:429
Weight 120lb:514
Weight 125lb:536
Weight 150lb:643
Weight 175lb:750
Weight 200lb:857
Weight 250lb:1072
Weight 300lb:1286
Calories Burned in 40 minutes
Weight 100lb:143
Weight 120lb:171
Weight 125lb:179
Weight 150lb:214
Weight 175lb:250
Weight 200lb:286
Weight 250lb:357
Weight 300lb:429
Calories Burned in 40 minutes
Weight 100lb:143
Weight 120lb:171
Weight 125lb:179
Weight 150lb:214
Weight 175lb:250
Weight 200lb:286
Weight 250lb:357
Weight 300lb:429
Calories Burned in 45 minutes
Weight 100lb:161
Weight 120lb:193
Weight 125lb:201
Weight 150lb:241
Weight 175lb:281
Weight 200lb:321
Weight 250lb:402
Weight 300lb:482
Calories Burned in 1 hour 30 mins
Weight 100lb:321
Weight 120lb:386
Weight 125lb:402
Weight 150lb:482
Weight 175lb:563
Weight 200lb:643
Weight 250lb:804
Weight 300lb:964
Calories Burned in 30 minutes
Weight 100lb:107
Weight 120lb:129
Weight 125lb:134
Weight 150lb:161
Weight 175lb:188
Weight 200lb:214
Weight 250lb:268
Weight 300lb:321