How long can you sit in a café with a laptop before it gets awkward? In most UK cafés, about 90 minutes per drink is fair, and less if people are hovering for a table. So buy something roughly every 90 minutes, keep to a small table, skip the calls and pack up when the lunch rush arrives.

I call that the one-flat-white rule. It isn’t official. No café owner is standing at the door with a stopwatch. But it lines up with what UK cafés publish, what they tell journalists and what people on Reddit settle on when they argue about it.

Here’s the reasoning, and what to do when 90 minutes isn’t enough.

Key numbers

What is the one-flat-white rule?

The one-flat-white rule is a simple guide for working from a café: one purchase buys you about 90 minutes at a table. After 90 minutes, order something else or give the table back, and if people are waiting for a seat, your time is already up.

That’s it. Four extras make it work:

• Sit small. Take a two-seater, not the table for six.

• Read the room. If the queue is out the door, the 90 minutes shrinks.

• No calls. A quick “can I call you back?” is fine. A 40-minute stand-up isn’t.

• Follow the sign. If the café has a laptop policy, the policy wins. Always.

Why 90 minutes? Because it’s the middle of what everyone seems to land on. On r/AskUK, one regular suggests “a big coffee every 60 to 90 minutes”. Over on r/UniUK, “two hours or so” with a drink is the rough consensus, plus “a little treat” for another hour. Some cafés go stricter, as you’ll see below.

How long do UK cafés actually let you stay?

UK cafés that set rules usually allow about an hour at busy times, ban laptops over lunch or keep them off the tables at weekends. Many more have no written rule at all and just hope you’ll be reasonable.

Here are the receipts:

• Milk and Bean, Newbury: laptops capped at an hour on weekdays and banned at weekends (BBC News, September 2024). A table sign says they’d “rather the tables were reserved for laughter, flirting and conversation” (The Guardian, March 2025). Honestly, fair.

• The Collective, Caversham: no laptops from 11:30 to 13:30 on weekdays, none at weekends (BBC News).

• Grounded, Bow: laptop-free from 11am to 3pm on weekdays (The Guardian).

• Pophams, London Fields: laptops restricted to high tables and windows (The Guardian).

• Bartons, Bermondsey: laptops welcome in two rooms, Monday to Friday, 8am to 4pm. Their laptop policy asks you to “please order something every now and then” because “it’s what keeps us going”.

Notice the pattern. Nobody is anti-laptop. They’re anti-empty-till.

Why do cafés care how long you stay?

Cafés care how long you stay because a table is the thing they sell, and coffee is how they charge for it. When one person holds a table for hours on a single drink, the café loses the next few customers who would have sat there.

The average UK coffee shop visit is worth £6.23, according to Allegra’s Project Café UK 2025. A regular latte is £3.64. Now picture a small café at lunchtime, every seat full, a queue of people with sandwich money, and you at the window table on your second hour with one cold flat white.

Chris Chaplin, who owns Milk and Bean, told the BBC that laptop users mean “a lower turnover and quite a low spend”. He also said “we rely on them for revenue”. Both are true at once. That’s the bit people miss.

Ollie Gold of Pophams put it more bluntly to The Guardian: “People would buy a tea that cost three pounds and would sit there all day… you just can’t afford to keep an establishment going like that.”

So it’s never about the laptop. It’s about the maths of a small room.

Is it rude to work in a café?

Working in a café isn’t rude if you buy regularly, stick to quiet times and leave when it fills up. It becomes rude when one drink turns into a whole day at a busy table, or when your Zoom call becomes everyone’s Zoom call.

I’ll be honest. I never felt rude. I felt something worse: constantly unsure.

When friends told me they worked from cafés, I tried it. And I found it really hard to concentrate, because half my brain was busy worrying.

Was I being rude? Was I taking up space? Was the café actually OK with this?

Should I nurse my coffee? Should I order food I didn’t want, just to justify staying?

Cafés want to look busy, but they also want people walking past to see there’s a seat for them. So was I helping the atmosphere or killing it?

I knew I shouldn’t take a call. But what if someone called?

Where was the line?

And the big one: I wanted to support local. I didn’t want to take advantage of places that rely on fast turnover to make ends meet. Was I helping my favourite café or hindering it?

I couldn’t work it out. So for me, cafés didn’t work. (My productivity didn’t so much drop as quietly leave the building.)

What if you need more than 90 minutes?

If you need more than 90 minutes, either keep buying on the one-flat-white rule at a quiet café, or work somewhere that actually wants you there all day. A café can be lovely for a morning. A full working day is a different ask.

When cafés stopped working for me, I googled “coworking spaces near me”. There were loads.

But using them was fragmented and far from frictionless. Each one wanted my details. Each had its own portal, its own pricing, its own day passes. Some were membership only. Some only let you in on certain days.

What I actually wanted was simple:

• The café bit: walk in, no forms, sit down.

• The office bit: a place that wanted me to work there.

That’s why we built Werksy. Werksy is a UK app that gives you access to spaces designed for working in, from coworking spaces to hospitality venues built for it, paying by the minute with no booking or membership.

And it turns out it wasn’t just coworking spaces that wanted people like me. Venues did too. Werksy recently started rolling out across Dishoom Permit Room, which is listed on Werksy in Cambridge and Brighton at £1.50 an hour, billed by the minute. More local independent venues and bigger names are joining as well. There are 169 spaces across 64 UK towns and cities on Werksy right now (October 2026).

No guilt maths. No nursing the flat white. You tap or scan in, and leave when you’re done.

See what’s near you on Werksy.

Should you stop working from your local café?

You shouldn’t stop working from your local café if it’s quiet, you’re spending money and the owner is happy to have you. Plenty of independents welcome laptops at the right times, and your £6 matters to them.

The honest bit: Werksy isn’t in every town yet, and it won’t replace the café you love on a slow Tuesday morning. If your local has a laptop corner, use it, follow the one-flat-white rule and tip well.

Just don’t make your favourite café your office. Make it your favourite café.

Connor
Founder, Werksy

Quick answers

How long can you sit in a café with a laptop?

In most UK cafés you can sit with a laptop for about 90 minutes per drink, and less when people are waiting for tables. This is the one-flat-white rule: buy something roughly every 90 minutes, use a small table, avoid calls and follow any laptop policy the café has.

Is it rude to work on a laptop in a café?

Working on a laptop in a café is not rude if you buy regularly, avoid the busy lunch period and give up your table when it fills. It is rude to hold a busy table for hours on one drink or to take long calls.

Do UK cafés ban laptops?

Some UK cafés ban or limit laptops. Milk and Bean in Newbury caps laptop use at one hour on weekdays and bans it at weekends, The Collective in Caversham bans laptops from 11:30 to 13:30 on weekdays and at weekends, and Grounded in Bow is laptop-free from 11am to 3pm on weekdays.

Where can I work all day if not a café?

If you want to work all day without worrying about a café’s turnover, use a space designed for working in. Werksy is a UK app that gives you access to spaces designed for working in, from coworking spaces to hospitality venues built for it, paying by the minute with no booking or membership.