- Native name
- Rotterdamse metro
- Locale
- Rotterdam , Netherlands
- Transit type
- Rapid transit and light rail
- Annual ridership
- 100.7 million (2024)
- Website
- RET (in English)
- Began operation
- 9 February 1968 ; 58 years ago ( 1968-02-09 )
- Operator s
- Rotterdamse Elektrische Tram (RET)
- System length
- 103.1 km (64.1 mi)
- Track gauge
- 1,435 mm ( 4 ft 8 + 1 ⁄ 2 in ) standard gauge
- Electrification
- Third rail / overhead line , 750 V DC
- Top speed
- 100 km/h (62 mph)