How Many Calories Should I Eat a Day? A Guide for Indian Adults

According to ICMR-NIN’s 2020 reference values, a sedentary Indian man (65 kg) needs about 2,110 kcal a day and a sedentary Indian woman (55 kg) about 1,660 kcal a day to maintain weight, with active people needing more. To lose weight, eat about 250 to 750 kcal less than your own maintenance number, and do not go below 1,200 kcal a day.

Din me kitni calorie khani chahiye? Short answer: baith kar kaam karne wale purush ko lagbhag 2,110 kcal aur mahila ko 1,660 kcal. Lekin aapka sahi number aapke weight, height, age aur activity se nikalta hai.

How many calories does an Indian adult need per day?

ICMR-NIN publishes energy requirements for a reference Indian man of 65 kg and woman of 55 kg at three activity levels:

“Sedentary” means mostly sitting: desk jobs, studying, driving. “Heavy” means hard physical labour for much of the day. A desk job usually counts as sedentary unless you also exercise regularly.

These figures are for maintaining weight, not losing it, and they are for the reference body weights above.

Why is my number different from the chart?

Because you are not the reference person. Four things change your number:

• Body size. A bigger body burns more energy. ICMR-NIN says actual requirements should be adjusted for actual body weight and activity.
• Body composition. Resting energy use follows lean mass more closely than total weight. In the study behind the Mifflin-St Jeor equation, fat-free mass was the best single predictor of resting energy expenditure (Mifflin et al., 1990).
• Age and sex. BMR equations give lower values with age, and lower values for women than men of the same size.
• Activity. The FAO/WHO/UNU report classes lifestyles by physical activity level (PAL, your total burn divided by BMR): 1.40 to 1.69 for sedentary, 1.70 to 1.99 for moderately active and 2.00 to 2.40 for vigorously active.

If you remember older, higher numbers, that is because ICMR-NIN revised them in 2020. The sedentary figures fell from 2,320 to 2,110 kcal for men and from 1,900 to 1,660 kcal for women. The committee found that international equations overestimated BMR in Indians by 10 to 12%, and that daily activities cost Indians less energy, so it lowered the sedentary PAL from 1.53 to 1.40.

How do I work out my own calorie needs?

There are two quick ways. Both give estimates.

Method 1: ICMR kcal per kg. Multiply your weight by the per-kg figure for your activity level. A sedentary 60 kg woman: 60 × 30 = about 1,800 kcal. This works best for people near a healthy weight. If you carry a lot of extra body fat, it will overestimate, because fat burns less energy than lean tissue.

Method 2: BMR equation × activity. This is what the TDEE calculator does. Take a 35-year-old man, 170 cm and 80 kg, with a desk job. Using Mifflin-St Jeor:

• BMR = (10 × 80) + (6.25 × 170) minus (5 × 35) + 5 = about 1,693 kcal
• TDEE at ICMR’s sedentary PAL of 1.40 = about 2,370 kcal

Method 1 would give him 32 × 80 = 2,560 kcal. The two methods differ by about 190 kcal, which is normal. Even well-tested equations are only accurate to about ±14% for an individual (Roza and Shizgal, 1984), which for him is roughly 330 kcal either way.

That is why the best number is the one your own body confirms. Eat at your estimated maintenance for two to four weeks, log honestly, and watch your weight trend. If it holds steady, that intake is your real maintenance. Our guide on how to count calories in Indian food shows how to log accurately.

How many calories should I eat a day to lose weight?

Weight loss mein kitni calories khana chahiye? Apne maintenance number se 250 se 750 kcal kam, lekin 1,200 kcal se neeche nahi.

Two widely used approaches:

• Subtract a deficit from TDEE. The 2013 AHA/ACC/TOS obesity guideline suggests a 500 or 750 kcal a day deficit. ICMR-NIN describes typical weight-loss diets as a 500 to 750 kcal deficit and considers losing about half a kilogram a week safe.
• Use a fixed range. The same guideline gives about 1,200 to 1,500 kcal a day for women and 1,500 to 1,800 kcal a day for men, adjusted for body weight and activity.

For the man above, 2,370 minus 500 gives about 1,870 kcal a day. For a sedentary 55 kg woman at ICMR’s 1,660 kcal, a 500 kcal cut would land at 1,160 kcal, which is too low. She is better off with a 250 to 450 kcal deficit (about 1,410 to 1,210 kcal) and more daily movement. The steps to calories calculator shows what extra walking adds.

The calorie deficit calculator applies these rules for you, and calorie deficit explained covers the maths in detail.

Do pregnant women, teenagers and older adults need different amounts?

Yes, and the differences are large:

Teenagers are still growing and need more energy than the adult reference values, so adult weight-loss calculators do not apply to them.

Safety note: if you are pregnant or breastfeeding, under 18, or have diabetes, PCOS, kidney disease or a history of an eating disorder, do not set a calorie target on your own. Ask a doctor or registered dietitian. Never go below 1,200 kcal a day without medical supervision.

Practical takeaway

• Start with ICMR’s reference figures (about 2,110 kcal for sedentary men and 1,660 kcal for sedentary women), then personalise with the TDEE calculator.
• Treat any calculator as a first guess. Real maintenance can be a few hundred calories either way.
• Confirm it with two to four weeks of honest logging and your weight trend.
• To lose weight, cut 250 to 750 kcal from maintenance, staying at or above 1,200 kcal (women) or 1,500 kcal (men).
• Recheck every few kilograms. A lighter body needs fewer calories.