When it comes to choosing the right mattress for your bedroom, size matters. A full size mattress, also known as a double mattress, is a popular option for those who want more sleeping space than a twin but don't have enough room for a queen. But before you purchase a full size mattress, it's important to know the dimensions so you can ensure it will fit comfortably in your room. The standard full size mattress dimensions are 54 inches wide by 75 inches long. This makes it 15 inches wider than a twin mattress and the same length as a twin XL. The thickness of a full size mattress can vary, typically ranging from 8 to 14 inches. When shopping for a full size mattress, keep in mind that the dimensions may vary slightly between different brands and models. It's always best to double check the exact measurements before making a purchase.Standard Full Size Mattress Dimensions
If you're used to measuring in inches, you may prefer to know the full size mattress dimensions in this unit of measurement. As mentioned earlier, a full size mattress is 54 inches wide by 75 inches long. This means it offers a total sleeping surface of 4,050 square inches. For those who need a visual, think of a full size mattress as the same width as two standard pillows side by side and the same length as a tall adult standing upright. This gives you a better idea of the amount of space you'll have to sleep on.Full Size Mattress Dimensions in Inches
For some, it's easier to conceptualize the size of a mattress in terms of feet rather than inches. In this case, a full size mattress measures 4.5 feet wide by 6.25 feet long. This is equal to 54 inches by 75 inches, or 27 inches by 75 inches for each sleeping person. If you're someone who likes to cuddle up close to your partner or pet while sleeping, a full size mattress may feel a bit cramped. However, for those who prefer a little bit of extra space to themselves, a full size mattress can provide the perfect amount of room.Full Size Mattress Dimensions in Feet
For our metric system users, the dimensions of a full size mattress can be expressed in centimeters as 137 cm wide by 190.5 cm long. This gives a total sleeping surface of 26,137.5 square centimeters. Compared to a twin mattress, which is 99 cm wide by 190.5 cm long, a full size mattress offers almost 40% more sleeping space. This makes it a great option for single adults or couples who don't have a lot of extra room in their bedroom.Full Size Mattress Dimensions in Centimeters
In the metric system, a full size mattress measures 1.37 meters wide by 1.9 meters long. This is equivalent to 1.37 meters by 1.9 meters, or 0.68 meters by 1.9 meters for each sleeping person. To put this into perspective, a full size mattress is about the same length as a standard door and slightly wider than a single door. This makes it a practical choice for those who want a larger sleeping surface without taking up too much space in their room.Full Size Mattress Dimensions in Meters
For a more precise measurement, the dimensions of a full size mattress in millimeters are 1,372 mm wide by 1,905 mm long. This gives a total sleeping surface of 2,616,660 square millimeters. While this may seem like a lot of numbers, it's important to know the exact dimensions of a full size mattress if you're looking to purchase one. This will ensure that it fits comfortably in your room and provides enough space for a good night's sleep.Full Size Mattress Dimensions in Millimeters
For those who prefer to measure in yards, the dimensions of a full size mattress are 1.5 yards wide by 2.08 yards long. This is equivalent to 54 inches by 75 inches, or 27 inches by 75 inches for each sleeping person. In terms of sleeping space, a full size mattress offers 3.12 square yards, making it a practical option for individuals or couples who want a little extra room to spread out while sleeping.Full Size Mattress Dimensions in Yards
A full size mattress offers a total sleeping surface of 37.5 square feet. This is equal to 4.17 square yards or 3.48 square meters. Compared to a twin mattress, which has a sleeping surface of 25 square feet, a full size mattress offers almost 50% more space. While it may not be as roomy as a queen or king size mattress, a full size mattress can comfortably accommodate one or two people and is a great choice for smaller bedrooms.Full Size Mattress Dimensions in Square Feet
Lastly, the dimensions of a full size mattress can be expressed in square meters as 3.48 square meters. This is equivalent to 26,137.5 square centimeters or 37.5 square feet. For those who live in smaller apartments or have limited space in their bedroom, a full size mattress can provide the perfect amount of sleeping space without taking up too much room.Full Size Mattress Dimensions in Square Meters
When purchasing a full size mattress, it's also important to consider the size of your headboard. A headboard can add a decorative touch to your bedroom and also provide support for your pillows while sleeping. The standard width of a full size mattress headboard is 54 inches, which matches the width of a full size mattress. However, the height of a headboard can vary, so it's best to measure the height of your bed frame and mattress to ensure the headboard will fit properly. If you're looking to purchase a new headboard for your full size mattress, make sure to measure the dimensions of your bed and mattress beforehand to avoid any sizing issues.Full Size Mattress Headboard Size