what are the dimensions of a king size bed
A standard king size bed typically measures 76 inches wide by 80 inches long (about 193 cm x 203 cm).
Quick Scoop
- Standard (US) king: 76" x 80" (about 193 x 203 cm).
- UK king: about 60" x 79" (5'0" x 6'6", 150 x 200 cm).
- It’s the widest common mattress size made for homes, great for couples who want extra space.
Common King Variants
- Standard/Eastern King : 76" x 80" – what most people mean by “king size bed.”
- California King : 72" x 84" – slightly narrower but longer, for taller sleepers.
- In some regions (like the UK and parts of Europe), “king” is closer to 60–65" wide and around 78–80" long, so measurements can vary by country.
Simple Size Table (mattress only)
| Region / Name | Width | Length |
|---|---|---|
| US Standard King | 76 in (≈193 cm) | 80 in (≈203 cm) |
| US California King | 72 in (≈183 cm) | 84 in (≈213 cm) |
| UK King | 60 in (≈150 cm) | 79 in (≈200 cm) |
If you’re measuring your room, a good rule of thumb is to allow at least about 30" (≈76 cm) of free space on the sides so you can move comfortably around a king bed.
TL;DR: If you’re in North America and asking “what are the dimensions of a king size bed,” the expected answer is 76" x 80". In the UK and some other regions, “king” is closer to 60" x 79" , so always double‑check local sizing charts.
Information gathered from public forums or data available on the internet and portrayed here.