This plugin allows you to add quantity/price calculators to enable the listing of products that are sold per unit with a known measurement (for instance, tiles with an advertised square footage per box), or products which are priced by the foot, square meter, cubic yard, kilogram, etc and are purchased using a custom measurement (such as fabric).

By determining what kind of measurement you’d like your pricing based on, you can then set price by a defined quantity (for example, price based on a box with 12 tiles), or price by allowing customers to enter their own measurement (for example, price by linear foot).

The two calculator modes (the quantity calculator and the pricing calculator) are possible for each type of measurement, and you can change between them by enabling or disabling one checkbox. The quantity mode allows the customer to enter the measurement of product they require, and the calculator will determine the quantity (i.e., boxes of tiles) required to meet or exceed the required measurement. With the pricing mode, you set a price per measurement (i.e., dollars per foot) and the customer enters the dimensions they require, and the total price is then calculated.

With either calculator, you can choose between dimensions (i.e., length), perimeter, area, volume, or weight. You can use any combination of units (perhaps a square foot area with depth in inches to calculate the amount and cost of mulch priced in cubic yards). Finally, you can customize the field labels to reflect whatever product you sell.