Macro Tracker

Know what to eat for the goal you’re chasing.

Calories matter.

Protein matters.

But guessing both makes progress harder than it needs to be.

Use the OFFSET Macro Calculator to estimate your daily calorie, protein, carbohydrate and fat targets based on your body, activity levels and goal.

Whether you’re trying to build muscle, lose body fat or maintain your current weight, this gives you a practical starting point.

Work out your TDEE to pre-populate your macros below, or enter your goal calories and macros if you already know them.

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What are macros?

“Macros” is short for macronutrients.

They’re the three main nutrients that provide your body with energy:

Protein
Important for building and maintaining muscle.

Carbohydrates
Your body’s primary source of readily available energy, particularly useful for training.

Fat
An essential part of your diet that supports a range of normal bodily functions.

Each macro contributes towards your overall calorie intake.

Protein and carbohydrates contain approximately 4 calories per gram, while fat contains approximately 9 calories per gram.

Your calorie target determines the overall amount of energy you’re consuming.

Your macros help decide where those calories come from.

Calories vs Macros: What actually matters?

If your main goal is changing your bodyweight, your overall calorie intake is the biggest piece of the puzzle.

But calories alone don’t tell the whole story.

Imagine two people both eating 2,500 calories.

One eats enough protein to support their training and structures their food around performance and recovery.

The other barely eats any protein at all.

Same calories.

Very different diet.

Tracking macros gives you more control over the composition of your diet rather than focusing purely on a calorie number.

How many calories do I need?

Your calorie needs depend on several things, including:

  • Your age
  • Sex
  • Height
  • Weight
  • Activity level
  • Training
  • Your current goal

The calculator estimates the amount of energy you use each day and then adjusts your intake depending on whether you want to lose weight, maintain weight or gain weight.

It’s an estimate — not an exact prescription.

Use it as a starting point and adjust based on what actually happens to your bodyweight, performance and recovery over the following weeks.

Choosing your goal

Lose Body Fat

To lose weight, you generally need to consume fewer calories than your body uses.

That’s known as a calorie deficit.

The aim isn’t necessarily to eat as little as possible.

A sensible deficit should still leave you able to train, recover and consume enough protein while gradually reducing bodyweight.

Maintain

Not every phase of training needs to involve gaining or losing weight.

Maintenance calories aim to roughly match the amount of energy your body uses each day.

This can be useful if you’re happy with your current bodyweight and simply want to focus on training performance, strength and body composition.

Build Muscle

Building muscle requires hard training first.

Nutrition supports it.

A modest calorie surplus can provide your body with additional energy to support training, recovery and muscle growth.

More food isn’t automatically better.

The aim is to eat enough to support progress without unnecessarily increasing the rate of fat gain.

Nutrition is only half the equation

You can calculate the perfect macros.

You still have to give your body a reason to adapt.

Train hard.

Recover.

Eat appropriately.

Then gradually ask your body to do more.

One extra rep.

A little more weight.

A better-controlled set.

That's progressive overload.

And when the next jump on the machine is bigger than the progress you're ready to make?

Make a smaller one.

The OFFSET Increment Pin lets you add smaller amounts of weight to gym machines to help you keep progressing when the standard weight stack jumps are too large.

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Frequently asked questions

Is the OFFSET Macro Calculator accurate?

The calculator provides an estimate based on the information you enter.

No online calculator can know your exact daily energy expenditure, so your result should be treated as a starting point rather than a guaranteed number.

Track your progress and adjust if necessary.

Should I track calories or macros?

For changes in bodyweight, overall calorie intake is particularly important.

Tracking macros can then help you ensure those calories contain appropriate amounts of protein, carbohydrate and fat.

For many people, simply tracking calories and protein gives them most of the benefit without needing to obsess over every gram.

Can I use this calculator to lose weight?

Yes.

Choose a fat-loss goal and the calculator will estimate a calorie and macro target designed to put you below your estimated maintenance intake.

Actual results will vary, so monitor your average bodyweight over time.

Can I use this calculator to gain muscle?

Yes.

Select a muscle-building goal and the calculator will estimate an appropriate calorie and macro intake.

Remember that nutrition alone doesn't build muscle — you also need sufficient resistance training and progressive overload.

How Much Protein Do I Need?

If you lift weights regularly, protein is one of the most important macros to get right.

Protein provides the amino acids your body uses to repair and build muscle tissue.

Your ideal intake varies depending on your bodyweight, training and goal, but the important thing is consistency.

You don’t need to hit your target to the exact gram every day.

Being somewhere around your target consistently is far more useful than hitting it perfectly once and forgetting about it for the rest of the week.