13 inches is 1 inch longer than a foot or 33.02 centimeters. While these conversions may help with math problems, they don’t do much if you’re trying to gauge 13 inches in your mind’s eye. Luckily, there are countless everyday objects we can use as references.

Have you ever purchased shoes online, only to end up with a pair that is too big or too small? Well, you’re certainly not alone in this, which is why it’s worth knowing different country’s shoe sizes. If you’re on the hunt for the perfect French shoe sizes, you’re in luck.

Are you trying to figure out how long 7 meters is? It’s about the same as 22.9659 feet or 7.65529 yards. Still confused as to how long 7 meters looks? No surprise there—without a ruler, these numbers can’t help much when visualizing lengths. But what can help is using everyday objects as size references.

Ever wonder why milk cartons come in so many sizes? Well, different milk carton sizes serve for different needs, from a quick school lunch to a big family breakfast. So, what are the classic milk cartons you can get at the supermarket?

American flags used for executive agencies must have a height-to-width ratio of 1:1.9, with minor exceptions. The following chart describes standard American flag sizes, but you can find them in all sorts of size and proportion ratios.

If you’re trying to create a buzz for your business, you need to think big when it comes to marketing. And what can be bigger than billboards, which are designed to capture the attention of motorists in slow- and fast-moving traffic? The only question is, what are the different billboard sizes?

Pokémon cards measure 2.5 × 3.5 inches (6.35 × 8.89 cm), with a thickness between 0.01 and 0.03 inches (0.03 and 0.07 cm). Oversized variants were released. Box toppers measured 3.54 × 5 inches (9 × 12.7 cm). Jumbo cards measured 6 × 8 inches (15.24 × 20.32 cm) before 2020 and 5.75 × 7.5 inches (13.97 × 19.05 cm) after.

The great thing about measuring tools like rulers is that they tell you the size of things easily. The problem is, most rulers are 12 inches tall, and measuring something as tall as 4 feet can be a hassle. Of course, 4 feet is the same as 4 rulers, 3-1/3 yards, or 1.2192 meters, but how tall is that visually?

Are you trying to measure 15 centimeters without a ruler? Good luck! You could know that 15 centimeters is equal to 5.90551 inches, but that doesn’t help visualize this length, does it? What you can do instead is use common objects as a reference.

If you’re trying to get a feel for what 6 centimeters looks like without a ruler, you’re going to have a tough time. 6 centimeters, which is about 2.3622 inches, is a tiny measurement. That’s where tiny everyday objects can come in handy as size references!

Have you ever tried measuring an object by eye? It becomes a lot more difficult when the thing you’re trying to measure is humungous like, say, 40 feet high. You may or may not know that 40 feet is equal to 13-1/3 yards to 12.192 meters, but these numbers don’t accurately represent this measurement’s appearance. What you can do is use everyday objects as reference for your mind’s eye.

Trying to figure out what 2 millimeters looks like? It’s the same as 0.0787402, but that doesn’t mean much if you don’t have a ruler on hand. The next best thing is to use common things as size references.