WooCommerce product dimensions/weight units normaliser

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<?php

/**
 * For WooCommerce 1.4.2 and above
 * Dimensions/weight Units Normaliser
 * Author Andy Zhang
 * Company: Hypnotic Zoo
 * Company Url: hypnoticzoo.com
 */

/**
 * 
 * Normalise dimensions, unify to cm then convert to wanted unit value
 * $unit: 'in', 'm', 'cm', 'm'
 * Usage: wooDimNormal(55, 'in');
 * 
 */
function wooDimNormal($dim, $unit) {

	$wooDimUnit = strtolower($current_unit = get_option('woocommerce_dimension_unit'));
	$unit = strtolower($unit);

	if ($wooDimUnit !== $unit) {
		//Unify all units to cm first
		switch ($wooDimUnit) {
			case 'in':
				$dim *= 2.54;
				break;
			case 'm':
				$dim *= 100;
				break;
			case 'mm':
				$dim *= 0.1;
				break;
		}

		//Output desired unit
		switch ($unit) {
			case 'in':
				$dim *= 0.3937;
				break;
			case 'm':
				$dim *= 0.01;
				break;
			case 'mm':
				$dim *= 10;
				break;
		}
	}
	return $dim;
}

/**
 * 
 * Normalise weight, unify to kg then convert to wanted to unit
 * $unit: 'g', 'kg', 'lbs'
 * Useage: wooWeightNormal(55,'lbs');
 * 
 */
function wooWeightNormal($weight, $unit) {

	$wooWeightUnit = strtolower($current_unit = get_option('woocommerce_weight_unit'));
	$unit = strtolower($unit);

	if ($wooWeightUnit !== $unit) {
		//Unify all units to kg first
		switch ($wooWeightUnit) {
			case 'g':
				$weight *= 0.001;
				break;
			case 'lbs':
				$weight *= 0.4535;
				break;
		}

		//Output desired unit
		switch ($unit) {
			case 'g':
				$weight *= 1000;
				break;
			case 'lbs':
				$weight *= 2.204;
				break;
		}
	}
	return $weight;
}

?>

this is exactly what i need it. you put this code in function.php?

Where did you add this, and does it work?

Hi, same question, in functions.php ???