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6 Minute Walk Test Calculator

Table of contents

What is a six minute walk test (6MWT)?6 minute walk test - predicted distance equations6 minute walk test — norms6 minute walk test calculator — a practical exampleFAQs

The 6 minute walk test calculator provides reference values for the distance an adult should walk during six minutes. We use the 6 minute walk distance (6MWD) to assess a patient's functional status, their response to therapy, and for the prognosis of different cardiopulmonary conditions. Please read the article below to find out more about the six minute walk test (6MWT), its interpretation, and how to find the 6 minute walk test norms.

If you are interested in another test providing both diagnostic and prognostic information about patients with suspected coronary heart disease, please check the Duke treadmill score calculator. You can also check how many calories you burn by walking with our steps to calories calculator or the walking calorie calculator.

We try our best to make our Omni Calculators as precise and reliable as possible. However, this tool can never replace professional medical advice.

What is a six minute walk test (6MWT)?

A 6 minute walk test is a submaximal exercise test that measures the distance walked over the span of 6 minutes. This is a quick and inexpensive measure of physical function, as it reflects the capacity to perform everyday activities. It can be used to assess the functional status of patients, their response to treatment, and their prognosis. A patient's 6 minute walk distance is reduced by several types of diseases, including obstructive lung disease, heart failure, arthritis, and neuromuscular disease.

Advantages of 6 minute walk test:

  • Simplicity;
  • Low cost;
  • Easy to standardize; and
  • Low patient burden (feasible even for elderly and frail patients).

A detailed description of how to perform a standardized six minute walk test can be found in the AST Guideline for the Six Minute Walk Test.

6 minute walk test - predicted distance equations

Distances walked by healthy adults may vary significantly. In 1998, Enright and colleagues created sex-specific equations to predict walking distance in healthy adults. To do that, they took measurements from 117 healthy men and 173 healthy women aged 40 to 80 years.

We use the equations below to find the 6 minute walk test predicted distance 6MWD:


6MWD = (7.57 × height) – (5.02 × age) – (1.76 × weight) – 309


6MWD = (2.11 × height) – (2.29 × weight) – (5.78 × age) + 667


  • 6MWD — 6 minute walk distance, expressed in meters;

  • height — expressed in cm;

  • weight — expressed in kg; and

  • age — expressed in years.

Don't worry about switching between different units. Our 6 minute walk test calculator has a built-in converter.

6 minute walk test — norms

The equations described above predict the distance that a patient should walk based on their height, weight, age, and sex. The authors have determined the lower limits of the norm, which are:


lower limit = 6MWD − 153


lower limit = 6MWD − 139


  • 6MWD — 6 minute walk distance expressed in meters.

A low 6MWT result is prognostically useful but is nondiagnostic, as it doesn't tell us the reason for a low result.

Factors that decrease and increase the 6MWT result:



Shorter height

Taller height

Female sex

Male sex

Older age

Increased motivation

Higher body weight

Higher muscle mass

Cardiovascular or pulmonary disease

Past performance of the test

6 minute walk test calculator — a practical example

Let's see how the 6 minute walk test calculator works using an exemplary patient. He's 72 years old, 177 cm (5.8 ft) tall, and weighs 80 kg (176 lb). He performed a six minute walk test, and the distance he managed was 432 meters (328 ft). Let's check if that's the norm.

  1. We need to start by calculating 6 minute walk test predicted distance:

    6MWD = (7.57 × height) – (5.02 × age) – (1.76 × weight) – 309

    6MWD = (7.57 × 177 cm) – (5.02 × 72 yo) – (1.76 × 80 kg) – 309

    6MWD = 1340 – 361 – 141 – 309

    6MWD = 529 meters

  2. Now we can check if this result falls into 6 minute walk test norm:

    lower limit = 6MWD − 153

    lower limit = 529 − 153

    lower limit = 376 meters

The patient result of 432 meters is above the lower limit.

  1. Finally, we can calculate the percentage our patient managed compared to the expected distance of a healthy patient:

    % expected = 423 / 529 × 100%

    % expected = 0.82 × 100%

    % expected = 82%


What distance should I walk in 6 minutes as a 30-year-old man?

The estimated 6-minute walk distance for a 30-year-old man can vary based on multiple factors, including height and weight. For instance, a healthy 30-year-old man who is 183 cm (6 ft) tall and weighs 80 kg (about 176.4 lbs) is estimated to cover 784.9 meters in 6 minutes.

How do I calculate the 6-Minute Walk Test predicted distance for a woman?

To calculate the 6-Minute Walk Test predicted distance for a woman, you can follow these simple steps:

  1. Multiply the woman's height in centimeters by 2.11.
  2. Find 2.29 times her weight in kilograms, then subtract that from the value in step 1.
  3. Subtract 5.78 times her age from the value determined in step 2.
  4. Add 667 to the result.

Can the 6-Minute Walk Test diagnose a specific health condition?

Although the 6-Minute Walk Test offers valuable insights into a person's physical condition, it is essential to note that the test alone cannot diagnose a specific medical condition. Hence, it is crucial to interpret the test results in conjunction with findings from other diagnostic assessments.

What are the advantages of the 6-Minute Walk Test?

The 6-Minute Walk Test is easy to administer, can be standardized, is cost-effective, and imposes minimal patient burden.

If you wish to assess a patient's functional status, response to therapy, and prognosis of different cardiopulmonary conditions, use Omni's 6 Minute Walk Test calculator.

Check your 6MWD

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