How to Choose a TDEE Activity Level

The short answer

Choose the lowest band that honestly describes the full week

Start with work and non-exercise movement, not gym frequency.
Add training volume and any regular endurance work.
If you are between bands, use the lower estimate as a conservative starting point.
Compare the estimate with at least two comparable weeks of intake and weight data.

Activity multipliers are coarse planning conventions. They do not measure energy expenditure, and no universal step-count conversion makes them precise.

The five bands used by Deficit Compass

Band	Factor	Reasonable starting interpretation	Common overestimate
Sedentary	1.2	Mostly seated work and low daily movement, with little structured training.	Assuming normal errands make the day lightly active.
Light	1.375	Mostly seated work with consistent walking, or a few moderate training sessions.	Counting every short workout as a full activity band.
Moderate	1.55	Substantial daily movement, regular training, or a job that keeps you moving for much of the day.	Choosing it from 3-5 gym visits while the other 23 hours remain sedentary.
Heavy	1.725	Physically demanding work, high training volume, or both.	Using one unusually hard week as the average week.
Very high	1.9	Sustained athlete-level training or exceptional occupational and training demands.	Selecting it because workouts feel intense rather than because total volume is exceptional.

These descriptions are product guidance, not validated diagnostic cutoffs. Individual movement efficiency, body composition, training type, and adaptive behavior can change actual expenditure.

One band can move the result by hundreds of calories

For a person with an estimated BMR of 1,600 kcal/day, the multiplier alone produces this range:

1.21,920

1.3752,200

1.552,480

1.7252,760

1.93,040

Each adjacent band adds 280 kcal/day in this example. That is large enough to erase a gentle planned deficit. The arithmetic is simple: 1,600 x 1.375 = 2,200, while 1,600 x 1.55 = 2,480.

A better decision sequence

01

Describe work

Is most of the workday seated, mixed, standing, walking, lifting, or physically demanding?

02

Describe movement

Look at a typical week of commuting, caregiving, errands, and walking. Do not use the most active day.

03

Add training

Consider frequency, duration, and type. Resistance training and endurance work impose different energy demands.

04

Choose uncertainty

If two bands both sound plausible, select the lower one and keep the adjacent result visible as an uncertainty range.

05

Calibrate

After two or more comparable weeks, observed intake and weight trend should outrank the dropdown label.

Three examples where gym frequency misleads

Profile A

Desk job, four lifting sessions

Most of the week is seated and sessions are about an hour. Light may be a better starting point than Moderate unless daily movement is also high.

Profile B

Warehouse work, no gym

A person can have high total activity without formal workouts. Moderate or Heavy may be more plausible depending on shift demands and recovery.

Profile C

Teacher, daily walking, three runs

Standing work, regular walking, and endurance training may support Moderate even though gym frequency is low.

These examples illustrate the decision, not prescribe a factor. The same job title can contain very different movement patterns.

What to do when you are unsure

Calculate adjacent bands and treat them as a range. A 1,600 kcal BMR produces 2,200 at Light and 2,480 at Moderate. Starting near the lower estimate reduces the risk of assuming a calorie budget that only exists on training days.

Use the activity-level calculator to make the work, step, and training assumptions visible before comparing that range.

Then use the two-week calibration workflow. If average intake near 2,300 produces stable weight across multiple comparable weeks, the observed record provides more useful evidence than either label.

Do not turn the activity factor into an exercise prescription

The selector estimates energy expenditure; it does not determine how much exercise is safe or appropriate. Sudden increases in training volume, exercise used to compensate for eating, or activity during illness and injury deserve a different decision process. Seek qualified guidance for medical restrictions, pregnancy, eating-disorder history, or concerning symptoms.

Sources and creation notes

The sensitivity table and examples were calculated by Builderfox LLC. Activity-band descriptions are transparent product conventions and have not been clinically validated. This page has not yet been medically reviewed. Report an error through Contact.

Creation note: AI-assisted research and drafting were manually checked against the cited sources and arithmetic. See the editorial policy.

Your workout is only part of your activity level.