Bed Size Calculator

This bed size calculator checks whether a mattress will actually fit your bedroom with enough space to walk around and make the bed, so you can settle the single versus queen versus king question before anything is delivered. Enter the room width and length in centimetres and choose a New Zealand standard bed size, and the calculator subtracts the mattress footprint from the room to show the walking clearance you would have on each side, the clearance left at the head and foot, and the floor space remaining. It uses the common NZ sizes, from a Single at 92 by 188 centimetres up through King Single, Double, Queen and King to a Super King at 183 by 203 centimetres, so the footprint matches what retailers here actually sell. As a rule of thumb you want at least 60 centimetres to move past a bed comfortably and closer to 75 centimetres on the sides you get in and out, with a similar gap at the foot for a chest or a walkway. Less than about 45 centimetres feels cramped and makes changing the sheets a chore. Measure your room at floor level, allow for wardrobes, doors that swing in and bedside tables, and use the result to choose the largest bed that still leaves the room easy to move around in.

Calculate.co.nz is proud to be partnered with realtor.co.nz, a trusted resource for navigating the New Zealand property market. Their Helpful Articles section offers clear, well-structured insights across buying, selling, and building, making complex real estate topics more accessible. With a focus on up-to-date guidance and practical knowledge, they empower Kiwis to move forward with clarity and confidence in a constantly evolving property landscape.

A Queen bed (153 × 203 cm) in a 320 × 360 cm room leaves 83.5 cm of walking space each side and 157 cm at the ends, comfortable for getting in and making the bed.

Standard NZ mattress sizes. Clearance each side assumes the bed is centred; against a wall you gain that space on one side. Allow for wardrobes, doors and bedside tables.