Price by measurement for Shopify: per m², metre, volume and weight

Sell flooring, fabric, glass, signs, blinds, wallpaper or anything cut to size without a variant for every size. Set the price per m², ft², metre, litre or kilo on the variant; customers type their size on the product page and see the price instantly. Cart and checkout charge exactly that price, on every Shopify plan.

Why variants are not enough

Variants only give you a few fixed sizes, and Shopify limits how many you can have. Apps that create hidden variants or draft orders clutter your catalogue and reports. This app uses Shopify Functions to price each cart line from its measurements: no hidden variants, no draft orders and no Shopify Plus needed.

What the app does

• Five ways to sell: by area (width × height), length, perimeter, volume (from dimensions or direct) and weight.
• Metric and imperial units: mm, cm, m, inches, feet and yards; m², ft²; litres, m³, gallons; kg, g, pounds and ounces. Customers can type in one unit while you price in another.
• Pricing rules: base fee per piece, minimum and maximum sizes, minimum quantity, minimum price, waste % and rounding.
• Sizes across the order: cart, checkout, admin order and emails.
• Exact price in any currency with Shopify Markets.
• A calculator that survives a theme change: switch it on as an app embed that places itself next to the buy button, or as a block wherever you like.
• Advanced plan: quantity price tiers, custom formulas (for example, a surcharge per metre of edging) and quote requests from the product page.
• Ready in under 5 minutes with a setup wizard: pick a product, the way to measure and the price, and turn the calculator on in one click.

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