How Long Would It Take To Walk The London Marathon

Ever found yourself staring at a massive distance, like, say, 26.2 miles, and wondered, "Could I walk that?" Specifically, could you walk the legendary London Marathon?
It’s a fun thought, right? Like, what would that even look like? Forget the lycra-clad pros sprinting for glory. We’re talking about a leisurely stroll. A marathon amble. A pavement pilgrimage.
So, let’s dive in. How long would it really take you to conquer the London Marathon on foot? Grab a cuppa, settle in, and let’s find out!
The Speedy Strollers
Okay, so first up, we need to set some ground rules. We're not talking about a brisk power walk. We're picturing a more… civilized pace.
Most people walk at a pretty decent clip when they’re just getting from A to B. Think about it. You’re heading to the shops, meeting a mate, that sort of thing. That’s usually around 3 miles per hour (mph).
So, if you’re a fairly brisk walker, and you managed to keep that pace up for the entire 26.2 miles… how long would that take? Maths time! 26.2 miles divided by 3 mph… BAM! You’re looking at about 8.73 hours.
That’s under a full day, which is pretty impressive! Imagine, you could practically walk from Greenwich to Buckingham Palace and still have time for a cheeky pub lunch afterwards. Well, maybe a very late lunch.
The "Let's Take It Easy" Crew
But let’s be real. Are you really going to maintain a 3 mph pace for over eight hours straight? Probably not. You'd get bored. Your feet would protest. You'd probably stop for a croissant or two.

A more relaxed walking pace is usually around 2 mph. It’s more of a wander. A contemplative meander. A "taking in the sights" kind of pace.
If you’re strolling at a chill 2 mph, that same 26.2 miles suddenly gets a lot longer. 26.2 miles divided by 2 mph… that’s 13.1 hours.
Suddenly, we're talking about an overnight adventure. You’d be starting in the morning and finishing well into the night. Maybe even seeing the sunrise again if you’re really taking your time!
The "Full Tourist Experience" Trot
Now, the London Marathon isn't just about the distance. It's about the atmosphere! The crowds! The sheer spectacle!
If you’re walking the London Marathon, you’re not just walking. You’re experiencing it. You’re stopping for photos. You’re cheering on the runners. You’re probably getting swept up in the buzz and stopping for a well-deserved ice cream.
Let’s say your average pace, with all the stops and starts, drops to a more leisurely 1.5 mph. This is the pace of someone who’s genuinely enjoying the journey, not just ticking off miles.

At 1.5 mph, 26.2 miles becomes 17.47 hours. That’s getting pretty close to a full 24-hour period. You'd be walking through daylight, dusk, and darkness. You’d see London from a whole new perspective!
What About the Official Cut-Off?
Now, the marathon organizers do have a bit of a say in this. They can't have people wandering around for days, can they?
The official cut-off time for the London Marathon is usually around 7 to 8 hours. This is for the runners, mind you! So, even if you’re a speedy walker, you’d probably be finishing around the same time as the slower runners.
If you’re aiming to officially complete the marathon as a walker, you'd need to keep up a pace of roughly 3.3 mph. That's 26.2 miles divided by 7 hours. So, yeah, the brisk walking pace we talked about earlier is your best bet for an official finish!
The Quirky Facts That Make This Fun
Why is thinking about walking the marathon so fun? Loads of reasons!
Firstly, it’s a completely different way to see the city. You’d notice things you’d never see whizzing by on a bus. The tiny alleyways, the quirky shop fronts, the stray cats sunbathing on windowsills. You’d be immersed.

Secondly, it’s the ultimate test of endurance… in a totally non-competitive way. It’s about seeing if your legs can handle it, if your mind can stay focused. It's a personal challenge.
And think of the people-watching! You'd see the determined runners, the fancy dress costumes (always a highlight!), and the enthusiastic supporters lining the streets. It’s a human spectacle.
Imagine walking past the screaming crowds at Canary Wharf. Or the iconic Cutty Sark. Or the sheer downhill thrill of Deptford. You’d be soaking it all in, one step at a time.
Adding in the "Real World" Factors
Let’s sprinkle in a few more fun, real-world elements that would affect your walking time:
Hydration Stations: You wouldn't just be walking; you'd be stopping for water. And maybe a flapjack. And possibly a banana. These little pit stops add up!
Toilet Breaks: Nature calls, especially on a long walk. Every stop adds precious minutes (or even hours, if you find yourself in a long queue!).

Crowd Navigation: The London Marathon route is packed with people. Even if you're a fast walker, you'll inevitably get slowed down by slower walkers, runners, and excited spectators. This is a big one!
The "Oh Wow" Moments: You'll want to stop and take pictures. You'll want to gaze at Tower Bridge. You might even get distracted by a street performer. These are the moments that make it an adventure, but they definitely add time.
The Weather: Imagine a glorious sunny day – perfect for walking! Now imagine a torrential downpour. You'd be walking slower, stopping more, and probably feeling a bit miserable. Weather is a game-changer!
So, What's the Verdict?
If you were to officially complete the London Marathon as a walker, you’d need to aim for around 3.3 mph to finish within the cut-off. That’s about 7 to 8 hours of continuous walking.
But if you were just doing it for the fun of it, to see the sights, and to have a grand adventure? You could easily be looking at anything from 10 to 20 hours, depending on your pace and how many croissants you decide to eat along the way.
It’s a marathon, after all! Whether you’re sprinting or strolling, it's a massive undertaking. But the idea of walking it? That's a whole different, incredibly fun, kind of achievement. It’s about the journey, the experience, and, of course, the 26.2 miles of pure London magic!
