Maintenance calories for a 50 kg man

A 30-year-old man weighing 50 kg at 178 cm burns about 2,200 calories a day lifting four days a week with 7,500 to 10,000 daily steps, and about 1,760 with a desk job and little activity. To lose about 0.25 kg a week, eat around 1,925 a day.

Updated

About you

Body fat is optional.

Sex
years
kg
cm
Training sessions a week

Your phone's weekly average is the honest number. Steps move your TDEE more than gym days do.

%

Adds Katch-McArdle and Cunningham, which work from lean mass instead of total weight.

Your TDEE

2,200kcal/day
BMR at rest (Mifflin-St Jeor)
1,470 kcal
Activity factor
×1.50

Calorie targets

Macros for cut

Protein
110 g
Carbs
251 g
Fat
54 g

Your BMR by formula

Without a body fat %, only Mifflin-St Jeor can run. With one, the lean mass formulas join in and Katch-McArdle sets your TDEE.

Mifflin-St Jeor1,470 kcal
Katch-McArdleNeeds body fat %
CunninghamNeeds body fat %

Your TDEE at each activity level

The classic multipliers most calculators use, applied to your BMR. Use it to sanity check the steps and sessions estimate above.

Activity levelMultiplierTDEE
SedentaryDesk job, little exercise×1.21,760 kcal
Lightly activeExercise 1 to 3 days a week×1.3752,020 kcal
Moderately activeExercise 3 to 5 days a week×1.552,275 kcal
Very activeHard exercise 6 to 7 days a week×1.7252,530 kcal
Extremely activePhysical job plus hard training×1.92,790 kcal

The calculator above starts at 50 kg. Change your age, height, steps and training days for your own number.

TDEE by height and activity at 50 kg

Worked out with Mifflin-St Jeor for a 30-year-old man. Find your height, then read across to how active you are.

TDEE by height and activity at 50 kg
HeightSedentaryLightly activeModerately activeVery activeExtremely active
160 cm1,6251,8652,1002,3352,575
165 cm1,6651,9052,1502,3902,635
170 cm1,7001,9502,1952,4452,695
175 cm1,7401,9902,2452,5002,755
180 cm1,7752,0352,2952,5552,810
185 cm1,8152,0802,3402,6052,870
190 cm1,8502,1202,3902,6602,930
195 cm1,8902,1652,4402,7152,990

Calories to cut, maintain or bulk at 50 kg

Targets for a 30-year-old man at 178 cm who lifts four days a week and walks 7,500 to 10,000 steps a day, with the pace set as a share of bodyweight.

Calories to cut, maintain or bulk at 50 kg
GoalCalories a dayWeekly change
Fast cut1,790−0.38 kg
Cut1,925−0.25 kg
Slow cut2,065−0.13 kg
Maintain2,200None
Lean bulk2,340+0.13 kg

TDEE by age at 50 kg

The formula takes 5 calories a day off resting energy for every year of age, so the same body burns a little less each decade. Worked out at 178 cm.

TDEE by age at 50 kg
AgeBMRSedentaryModerately active
20 years1,5201,8202,350
30 years1,4701,7602,275
40 years1,4201,7002,195
50 years1,3701,6402,120
60 years1,3201,5802,040

How much protein at 50 kg

Most of the research on lifters lands between 1.6 and 2.2 g of protein per kilogram of bodyweight a day. At 50 kg that is 80 to 110 g a day, with the top of the range most useful during a cut.

Other bodyweights

TDEE Calculator

Frequently asked questions

How many calories should a 50 kg man eat to lose weight?

Start from maintenance and take off enough to lose about 0.5% of bodyweight a week. For a 30-year-old man at 178 cm who lifts four days a week, maintenance is about 2,200 calories, so a cut sits near 1,925 a day. Weigh in daily, compare weekly averages, and adjust by 100 to 150 calories if the trend is off after two to three weeks.

How many calories should a 50 kg man eat to build muscle?

A lean bulk gains about 0.25% of bodyweight a week, which at 50 kg is a surplus of about 140 calories a day. That puts a man at 178 cm who lifts four days a week near 2,340 calories a day, with 80 to 110 g of protein.

How many calories does a 50 kg man burn at rest?

At rest, a 30-year-old man at 178 cm and 50 kg burns about 1,470 calories a day: that is the BMR. With a desk job and little exercise, the total for the day is about 1,760 calories.