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THE IRON GARAGE
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THE IRON GARAGE. Built for focused training.

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Calorie Calculator

Dial in your daily nutrition targets.

Enter your age, gender, height, weight, activity level, and goal to estimate maintenance, fat loss, and muscle gain calories.

Calculator inputs

Mifflin-St Jeor estimate using metric units.

Moderate

3-5 workouts/week

Maintain

Hold body weight steady while improving performance.

Selected target

Maintain calories

2755

kcal / day

1778

BMR

156g

Protein

1.55x

Activity

Maintenance calories

2755

kcal / day

Estimated daily calories to hold current body weight.

Fat loss calories

2305

kcal / day

Approximate moderate deficit for sustainable cutting.

Muscle gain calories

3055

kcal / day

Approximate lean surplus for gaining size.

How to use these numbers

1Track your 7-day average body weight, not single weigh-ins.
2Adjust calories by 100-200 kcal if weight trend stalls for two weeks.
3Keep protein high and let training performance guide the pace.