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Physical Activity Level Calculator

Choose your lifestyle and enter your BMR to find your PAL and energy needs.

How it is calculated

The tool picks a fixed PAL multiplier for the lifestyle you choose and multiplies it by your BMR: TDEE = BMR × PAL. The values are: sedentary 1.40, lightly active 1.60, moderately active 1.75, very active 2.00 and extremely active 2.40. BMR is your basal metabolic rate in kcal/day; you must enter it yourself, for example from a separate BMR formula or a measurement, and it must be above zero (0 or a negative number gives no result). If no lifestyle is chosen, moderately active (1.75) is used. TDEE is the estimated total energy burned per day, rounded to a whole kcal. The multipliers are fixed numbers and do not adjust for age, sex, body size or the exact training you do, so treat the output as a starting estimate of maintenance calories.

Worked example

Someone with a BMR of 1,600 kcal/day chooses “Lightly active”. The tool sets PAL = 1.60. Total daily energy expenditure = 1,600 × 1.60 = 2,560 kcal/day. If the same person moved up to “Moderately active” (PAL 1.75), the estimate would become 1,600 × 1.75 = 2,800 kcal/day, so the lifestyle choice alone shifts the daily figure by 240 kcal.

Try this example →

Common mistakes

  • Entering your calorie intake or your TDEE in the BMR field. The field expects resting energy only, so typing a total such as 2,500 multiplies it by PAL again and overstates your needs.
  • Overrating your activity level. “Very active” (2.00) is for people who train hard most days; picking it on the strength of a few workouts per week inflates the calorie target.
  • Treating the output as exact. Each category has a single multiplier, so real daily expenditure can differ by several hundred kcal.
  • Comparing it with calculators that use other multipliers such as 1.2, 1.375 or 1.55. Different tools use different scales, so the same BMR can give a different TDEE on each.
  • Forgetting to choose a lifestyle. The tool then assumes moderately active (1.75), which is higher than the 1.40 to 1.60 that suits a desk-based routine.

Sources

About this calculator

The Physical Activity Level (PAL) is a multiplier used in nutrition science to convert Basal Metabolic Rate (BMR) into Total Daily Energy Expenditure (TDEE): TDEE = BMR × PAL. This calculator uses 1.40 for a sedentary lifestyle with little movement beyond daily living, 1.60 for lightly active, 1.75 for moderately active, 2.00 for very active, and 2.40 for extremely active — such as very hard physical labor or athletic training.

Dietitians, personal trainers, and sports scientists use PAL to set calorie targets for weight loss, maintenance, or muscle gain, since BMR alone only reflects the energy burned at rest and ignores how active someone actually is day to day.

This calculator lets you pick your lifestyle category, enter your BMR, and instantly see your PAL factor along with the resulting total daily energy expenditure — a quick step for anyone building a calorie or macro plan without needing a wearable tracker.

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