Kefiw

Archived noindex page. Kefiw's public focus is Property decision help.

Archived page

This older Kefiw page is kept for reference, marked noindex, and removed from the primary sitemap. The current Kefiw experience is focused on property decisions: cost, quotes, damage, buying, selling, owning, and packets.

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Kinetic Expenditure · MET

MET-based calorie burn for 15 common activities, with junk-food equivalents.

MET × 3.5 × weight_kg / 200 × minutes. MET values from Ainsworth's Compendium of Physical Activities (2011) — the academic reference underneath every fitness tracker's calorie number.

Part of: Structural Output

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Fields marked optional can be skipped; results update as you type
Kinetic Expenditure · MET
Session Expenditure
420 kcal
9.8 MET · 840 kcal/h sustained
Big Mac equivalents
0.75
@ 563 kcal each
Oreo equivalents
7.9
@ 53 kcal each
Mass converted
81.6 kg
Formula: kcal = MET × 3.5 × weight_kg / 200 × minutes. MET values from Compendium of Physical Activities (Ainsworth 2011). Real expenditure varies ±15% by efficiency.

How to use

  1. Pick activity and enter duration.
  2. Read kcal for this session, kcal/h sustained, and junk-food equivalents.

Examples

180 lb · 30 min running · 9.8 MET
≈ 400 kcal session · 800 kcal/h · 0.71 Big Macs burned.

Before you act on the result

Health-related tools are educational planning aids. They can make a number or assumption visible, but they do not diagnose, treat, prescribe, or replace clinician guidance.

If the result points to risk, symptoms, medication questions, or urgent changes, use it as a note for a qualified professional rather than a final decision.

Next up

Burn total known. Now tune the zone mix.Operational Heart Rate Zones · Karvonen → Expenditure up? Recheck your metabolic floor.Metabolic Floor · BMR / TDEE →

Frequently asked questions

› How accurate is MET? How-to

±15% vs indirect calorimetry. Individual mechanical efficiency is the largest source of error.

› Do fitness trackers use MET?

Under the hood, yes — plus accelerometer data for intensity modulation.

Tips & related reading

See the Structural Output hub →

Tips & how-tos

Relevant links

Related tools

Metabolic Floor · BMR / TDEE

Calculate your Basal Metabolic Rate and Total Daily Energy Expenditure using Mifflin-St Jeor. Power-consumption view with cut / maintain / bulk zones.

Operational Heart Rate Zones · Karvonen

Calculate the five training zones using Karvonen (heart-rate reserve) method. More accurate than %HRmax alone.

Fuel Partitioning · Macros

Daily protein, fat, and carb targets anchored to bodyweight and training goal. Protein-first, fat floor second, carbs fill.