METS Conversion

if (isset ($_POST["wtlbs"])) $wtlbs = $_POST["wtlbs"];
if (isset ($_POST["wtkg"])) $wtkg = $_POST["wtkg"];
if (isset ($_POST["min"])) $min = $_POST["min"];
if (isset ($_POST["amt"])) $amt = $_POST["amt"];
if (isset ($_POST["unit"])) $unit = $_POST["unit"];

if ($wtlbs != "")
{

$weight = round($wtlbs / 2.2, 2);
$wtkg = $weight;

}

elseif ($wtkg != "")
{

$weight = round($wtkg, 2);
$wtkg = $weight;
$wtlbs = round($weight * 2.2, 2);

}

if ($unit == "mets")
{
$mlkgmin = round($amt * 3.5, 2);
$lmin = round((($amt * 3.5) * $weight) / 1000, 2);
$calmin = round(((($amt * 3.5) * $weight) / 1000) * 5, 2);
$mets = $amt;

if ($min != "")
$totcal = round((((($amt * 3.5) * $weight) / 1000) * 5) * $min, 2);

}

if ($unit == "mlkgmin")
{
$mets = round($amt/3.5, 2);
$lmin = round((($amt * $weight) / 1000), 2);
$calmin = round((($amt * $weight) / 1000) * 5, 2);
$mlkgmin = $amt;

if ($min != "")
$totcal = round(((($amt * $weight) / 1000) * 5) * $min, 2);

}

if ($unit == "lmin")
{

$mets = round((($amt * 1000) / $weight) / 3.5, 2);
$mlkgmin = round(($amt * 1000) / $weight, 2);
$calmin = round($amt * 5, 2);
$lmin = $amt;

if ($min != "")
$totcal = round(($amt * 5) * $min, 2);

}

if ($unit == "calmin")
{

$mets = round(((($amt / 5) * 1000) / $weight) / 3.5, 2);
$mlkgmin = round((($amt / 5) * 1000) / $weight, 2);
$lmin = round($amt / 5, 2);
$calmin = $amt;

if ($min != "")
$totcal = round($amt * $min, 2);

}

if ($unit == "totcal")
{

$mets = round((((($amt / $min) / 5) * 1000) / $weight) / 3.5, 2);
$mlkgmin = round((((($amt / $min) / 5) * 1000) / $weight), 2);
$lmin = round(($amt / $min) / 5, 2);
$calmin = round($amt / $min, 2);
$totcal = $amt;

}

?>

This Mets Conversion calculator can be used to determine the amount of calories used during an exercise, which is important in weight loss.  It can also assist in prescribing an exercise workload, as far as the intensity of the exercise.

The formulas used for this calculator are (excluding derivatives):
Mets to ml/min/kg = Mets x 3.5
ml/min/kg to L/min = (ml/min/kg) x Body Weight (kilograms) / 1000
L/min to cal/min = L/min x 5
cal/min to total calories expended = workout time x cal/min

Weight (LBS)




Results

Mets:

ml/kg/min (VO2 Max):

Liters/Minute:

Calories/Minute:

Total Calories: