A metre contains 1,000 millimetres. In other words, 1 m = 1000 mm. If you want to convert any measurement, multiply metres by 1000 to get millimetres, and divide millimetres by 1000 to get metres.

• Quick check: 2 m = 2000 mm, 0.5 m = 500 mm, 1500 mm = 1.5 m.

If you have a specific value you’d like converted, share it and I’ll compute it.