Price/m means “price per meter,” a unit rate that tells you how much something costs for each meter of length. You’ll see it on price tags and invoices for products sold by length, like fabric, cable, fencing, rope, or flooring trim. In some contexts, though, the “/m” can stand for something slightly different, so the meaning depends on what you’re shopping for.
Price Per Meter for Physical Goods
The most common use of price/m is straightforward: it’s the cost for one meter of a product. Textile shops, hardware stores, and lighting suppliers all use this notation when selling items by the roll or spool. A cable listed at €4.50/m, for example, means you pay €4.50 for every meter of cable you order. If you need 3 meters, you pay €13.50.
Products commonly priced this way include fabric and upholstery material, electrical and textile cable, garden hose, chain, rope, LED strip lighting, piping, and trim molding. Any material that comes in continuous lengths and gets cut to order will typically show a price/m figure so you can calculate your total based on exactly how much you need.
How to Calculate Price Per Meter
If a listing shows only a total price and a total length, you can find the price per meter yourself by dividing the total price by the length in meters. A 25-meter roll of cable that costs $50 works out to $2.00/m. This is useful when comparing products sold in different roll sizes. A 10-meter roll at $30 ($3.00/m) is more expensive per meter than a 50-meter roll at $125 ($2.50/m), even though the 10-meter roll has a lower sticker price.
The same logic applies when you’re estimating project costs. Measure the total length you need, multiply by the price per meter, and you have your material budget before tax and shipping.
Price Per Square Meter (Price/m²)
If you see price/m in a real estate listing or flooring quote, it almost certainly means price per square meter, sometimes written as price/m². Property values outside the United States are typically expressed this way, the same way Americans use price per square foot. A flat listed at €3,200/m² in Barcelona, for example, costs €3,200 for each square meter of floor area.
Price per square meter is also the standard unit for comparing construction costs, tile, carpet, and other materials sold by area rather than length. If the context involves a surface area rather than a single dimension, the “m” in price/m is shorthand for m², not a simple linear meter. The distinction matters: a flooring product at $25/m² covers one square meter per $25, while a baseboard at $25/m gives you one linear meter for $25.
Price/M in Advertising
In digital marketing, price/M (with a capital M) means something entirely different. Here the M stands for “mille,” the Latin word for 1,000. Cost per mille, or CPM, is the price an advertiser pays for 1,000 ad impressions. A CPM of $5 means the advertiser spends $5 every time their ad is displayed 1,000 times. If you’re reading about advertising budgets or media buying, this is the meaning to use.
You can usually tell from context which definition applies. If the subject is ad campaigns, clicks, or impressions, the M means 1,000. If the subject is a physical product with a length or area, it means meter.
Quick Way to Tell Which Meaning Applies
- Fabric, cable, rope, trim: price per linear meter (one dimension, length only)
- Flooring, real estate, tile: price per square meter (two dimensions, area)
- Advertising, media buying: price per 1,000 impressions
When in doubt, check the units listed elsewhere on the page. A product description mentioning length in meters points to a linear meter price. A listing that references area in m² or square meters is using the area-based meaning. And any mention of impressions, views, or ad spend signals the advertising definition.