How big, roughly, is a Saturn V rocket?

Play today’s rounds

FreeNo account required5 rounds a day2 minutes

How to play

  1. The London Eye on the left, a small Boeing 747 on the right at its starting size
    Two things stand side by side. The left one is named and fixed, and it is your only ruler.
  2. The 747 pulled up to the size of the London Eye beside it, the number running along at 140 metres
    Pull the right one until it looks right beside it. The number runs along, and you can type it instead.
  3. The reveal sheet: 1.15 times too small, the real length, and the way to work it out
    Lock it in. The sheet gives the real size and the factor you were out by, then the way you could have found it.

Play today’s five rounds

The reveal

2.5× too small

The Saturn V stood taller than Big Ben next to it, not half the height of it. Source ›

A football pitch is 105 m long, and the rocket laid along one covers it end to end with metres to spare. That is the anchor. Big Ben beside it stands 96 m, so the rocket has to clear the tower; stop below it and the answer is already too small.

What is in it

These, and more every week. Some you can picture at once, some you have never stood next to.

  • Burj Khalifa
  • Blue whale
  • Emperor penguin
  • RMS Titanic
  • Concert grand piano
  • Credit card
  • and more

Start with today’s pair

Questions

What is a size comparison game?
A game where you judge how big one thing is next to another. In How big? you get one shape you know and drag a second one until the size looks right. Then you see the real size and your miss as a factor.
Is there another daily game like Wordle?
Plenty, and How big? is one of them. Wordle wants a word and Worldle wants a country; here you answer with a gesture, and being wrong is a factor rather than a miss.
How do you play How big?
Two silhouettes stand side by side. The left one is named and never changes, and you pull the right one up or down until it looks the size it really is. One pull per round, five rounds a day, about two minutes.
How is a round scored?
As a factor. Half the real size reads 2x too small and three times over reads 3x too big; anything inside 1.05x counts as spot on. No points, no ranking, no streak nagging.
Is it free?
Yes, and you never need an account. Past days live in an archive; your first archive day is free.
How do you get better at estimating sizes?
By collecting anchors, which is what the reveal hands you. Every round ends with a way to reach the number from something you already know, so the next pull starts from a measurement instead of a feeling.

Play How big? today