Diet and exercise calculator: What鈥檚 the right plan for you?
Lose Weight and Get Fit with Tom Kerridge is on 大象传媒 iPlayer. Tom Kerridge鈥檚 Lose Weight for Good is on 大象传媒 Two on Monday at 7pm.
Trying to lose weight? Or just want to make sure you eat enough calories to fuel your exercise regime? Use our calculator to find out how many calories you need 鈥 and how many your exercise session will burn. If you have an overweight BMI and want to lose weight, you can do so safely by cutting up to 500 calories from your daily requirement. Alternatively, combine a smaller calorie reduction with an exercise programme that adds up to a daily calorie deficit of 500.
How the calculator works
Our calculator asks you for your activity level, with a choice of five categories, in order to calculate your calorie requirement. Remember 鈥 this is activity before your exercise session is taken into account. If you鈥檙e an office worker who drives to work and does little activity in your day-to-day life, you鈥檒l be in the sedentary category. If you have an extremely physically demanding job that requires almost continuous lifting and/or other strenuous exertion, you鈥檒l be in the fifth category 鈥 but let鈥檚 be honest, very few people are in this group.
You can then enter the type of exercise you plan to do and how long your exercise session will be. Our calculator will tell you how many calories it will burn. If you want to maintain your weight you can add these calories to your daily requirement.
How much exercise should you do per day?
If you鈥檙e baffled by exercise and weight-loss messages, you鈥檙e not alone. We know it鈥檚 important to exercise every day, but we鈥檙e told it can take several hours of brisk walking to burn off a single slice of cake. So what is a healthy exercise and diet pattern 鈥 and how the heck can you achieve it if your work requires you to sit down for several hours a day?
The NHS tells us adults should aim for at least two-and-a-half hours of moderate cardio exercise, or 75 minutes of vigorous exercise, per week. But what does this mean 鈥 and how many calories will it actually burn?
To find out, you need to know about RPE. For those of us who鈥檝e never heard of it, that鈥檚 Rate of Perceived Exertion. It鈥檚 a scale of 0鈥10, which corresponds with your feeling of breathlessness when you exercise. If you鈥檙e lying on the couch, you鈥檙e coming in at around, er, 0. If you鈥檙e putting your shoes on, you鈥檙e scaling the dizzy heights of 0.5. When you start to find it difficult to hold a conversation due to breathlessness you鈥檙e at 5, and when conversation requires maximum effort you鈥檙e at 8. If you can鈥檛 talk at all, you鈥檙e at 9鈥10.
So, if you ride a bike, walk quickly or do aerobics, congratulations 鈥 you鈥檙e doing moderate exercise. For exercise to be classed as vigorous, you need to be at 7鈥8.
Can you eat more if you exercise more?
Yes 鈥 but you might be surprised by the number of calories your session will burn! If you weigh 60kg, 30 minutes of cycling for leisure will burn around 120 calories, swimming around 180 calories and jogging around 210 calories. If you want to keep your weight in check, it鈥檚 vital you don鈥檛 over-estimate this. But exercise has more benefits than weight management, so don鈥檛 be put off it it seems like it鈥檚 not burning many calories.
Is it crucial to stick to your calorie requirement?
If you want to lose weight, it鈥檚 essential you burn more energy (calories) than you take in. But if you鈥檙e managing your weight well, there鈥檚 no need to meticulously count calories. If you eat a little more or less than you need in a day, you may naturally compensate for it on another day.
Importance of strength exercises
The NHS advises we should do strength exercises on two or more days a week in addition to our cardio work.
