Burning 500 calories a day is the bare minimum for weight loss. It takes an average man 97 minutes to walk 10K steps which is around 500-700 calories burned.
The above number depends on your current height, weight and age. However 10000 steps a day is what many health professional recommend that you should walk daily and this is what you should be aiming for.
If you want to burn 500 calories a day at home walking I suggest that you buy a pedometer from eBay which will cost you around £3 or $5 and download a mobile app called “Noom”. This app allows you to login your daily workout sessions and meals.
Counting daily calories intake and burned will help you to manage your daily routine. Plus you will be able to find out how many calories you have burned in the last 7 to 30 days. A weight graph is also available that let you login in every Saturday your current weight.
I personally have walked over 50000 steps since last Saturday (26/09/2015); around 31Km or 19.375miles and 2500 calories burned. Which makes an average of 12.5K steps a day or 625 calories.
Believe it or not but I have walked 50K steps in 4 days at home; I walked on the corridor between my kitchen and living room back and forth. I also calculated that for every 19 steps I burned 1 calorie. It took me exactly 19 steps to come around from the starting point, meaning my corridor was 19 steps back and forth combined or 6 meters in length. My stride is 62cm per step.
If I can burn over 500 calories a day and it takes me around 97 minutes a day so can you! I walk 60 minutes in the morning after breakfast and about 40 minutes after lunch. This combination helps me to burn over 4000 calories a week. Ideally you should burn between 2500-3000 calories a week.
The above suggest number means that you will be losing 1lb a week, or 2kg a month. Combining this cardio exercise at home with a well-balanced diet will definitely help you to lose weight. Meaning you will see noticeable results in just a few weeks.
Lastly remember to drink between 6-8 glasses of water while doing cardio exercise. Walking at home is difference from walking on a treadmill; you will not sweat as much but you will be burning calories just like normal cardio exercise. Nonetheless you should make sure that your body stays hydrated and the best way is to drink plenty of water a day.