So, how long is the Dartford Tunnel? 1.4 miles. But in psychological terms, it’s anywhere from 45 minutes to a lifetime. If you’re planning to drive it, bring snacks, a good playlist, and a calm attitude. Or just pay the Dart Charge online—because nothing ruins a trip faster than a £70 penalty notice arriving three weeks later.
And if you ever cross it at 2 a.m. with no traffic? Smile. You’ve just experienced the UK’s rarest miracle: an empty Dartford Tunnel. It’s like seeing a unicorn, but with more exhaust fumes.