You can handle this kind of dual-calculation pricing with only a few plugins, since most measurement tools don’t support combining both area and perimeter at the same time. One option worth checking is the Price Calculator for WooCommerce by Extendons, since it allows pricing based on area and also supports perimeter-style measurements. With length and width entered by the customer, you can set one rate for square-meter pricing and another for perimeter, and the plugin can combine both results into a single total. There aren’t many plugins that handle this exact setup cleanly, so it’s one of the closer matches for what you're trying to achieve.

If a formula-driven approach is needed instead, the Price by Formula Calculator plugin is the alternative, since it lets you define a custom equation like (a × b × p1) + ((2a + 2b) × p2). But for most stores, Extendons’ calculator tends to be the simpler and more direct option.