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Nutrition tool

Macro
Calculator

Enter your details, pick a goal, and get a daily calorie and macro target to start tracking against.

Your Details

Sex
yrs
kg
cm

Activity

Goal

Your daily target
1,920
Calories per day
Moderate deficit
BMR
1,770
At complete rest
Maintenance
2,400
Weight stays put
Activity factor
1.36
Applied to BMR
Protein
175g
36% of intake
Carbs
195g
40% of intake
Fat
50g
24% of intake
Fibre
27g
Minimum daily
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How to use these numbers

A calculator gives you a starting point, nothing more. What you do over the next month is what makes it right or wrong.

Give it two to three weeks

Hit these numbers as closely as you can and weigh yourself a few mornings a week, same conditions each time. One weigh in tells you nothing. A fortnight of them tells you plenty. Judge the trend, not a single bad morning.

Then adjust off what actually happened

Losing fat and the weight has not moved in three weeks, drop calories by about 150 or add steps. Gaining and you have put on nothing, add about 150. Moving too fast in either direction, go the other way. Small changes, then wait and watch again.

Protein is the one to get right

If you only nail one number, make it protein. It holds onto muscle while you are cutting and it keeps you full. Carbs and fat can move around to suit your day, your training and what you actually enjoy eating.

Where a calculator falls short

This runs on an equation. It cannot see your sleep, your stress, your medical history, how much you undercount on weekends, or how your body has responded to dieting before. That is the part a coach handles, and it is usually the part that decides whether the plan works.