Guesstimate — the number guessing game, rules and how to play
Guesstimate is a party game for 2–20 players in which everyone privately guesses the numeric answer to a question like "how tall is Mount Everest?", and the closest guess to the true value scores the points.
- Players
- 2–20 players
- Length
- ~15 minutes
- Type
- Brain game
- Type
- Relaxed
Runs in your browser · no download · no account
Nobody knows how deep the Mariana Trench is. That is the entire point. Guesstimate asks questions with a real number behind them and then makes you commit to one, out loud, in front of people who will remember what you said.
What makes it work is that being wrong is not the failure state — being wrong by more than your friend is. A question nobody can answer is still a question somebody wins, and the gap between 8,000 and 8,849 is a completely different feeling to the gap between 8,000 and 400.
There are 554 questions across geography, science, the human body, history, pop culture, food, sports, animals, space, money, technology and the UAE, each with the real figure and a fact you can read out afterwards to settle the room. Answers range from 5 to 202,080, so the scale itself is part of the puzzle.
Guesstimate is part of
What you need
- One phone, passed around or held by a host
- 2 to 20 players
- A willingness to say a number you are not sure about
- About 15 minutes
How to play Guesstimate
Pick your players, choose the categories and difficulty, and decide how many questions you want: 5, 10 or 15.
Choose how guesses get in. Pass around sends the phone round the group so everyone taps a private number; Host types means one person holds the phone and types in what the room shouts.
Read the question out loud — "How tall is Mount Everest, in metres?" — and note the unit. Everyone commits to a number. No phones, no googling, no changing your mind after you hear someone else.
Once every guess is in, the true answer counts up on screen and the guesses line up by how far off they were, closest at the top.
Closest wins scores 3 for the nearest guess, 1 for the runner-up, and 5 for an exact hit. Price is Right uses the same points but kills any guess that goes over the answer.
Mis-tapped a number? Tap any guess on the reveal screen to retype it — the round re-scores instantly, and so does the scoreboard.
Highest total after the last question wins. A tie at the top gets one extra tiebreaker question.
Scoring and winning
- Closest guess to the true answer scores 3 points.
- Second closest scores 1 point.
- An exact hit scores 5. It happens more often than you would think on the small-number questions.
- Price is Right mode keeps the same points but kills any guess that goes over the answer, which turns every question into a game of nerve.
- Ties share a place: everyone on the closest distance takes the 3, everyone on the next distance takes the 1.
- Skipping a question costs nothing, and any guess can be retyped on the reveal screen if it went in wrong.
Guesstimate strategy and tips
- Anchor on something you actually know. You may not know the length of the Nile, but you know roughly how wide a country is, and that gets you within an order of magnitude.
- In Closest wins, guess high on questions about scale. People systematically underestimate distances, populations and dates, so the mid-point of everyone's guesses is usually below the truth.
- In Price is Right, deliberately undershoot. Second-closest under the answer beats a bust every time, and one point still beats zero.
- Play Pass around with a group that talks. The whole game collapses if the first person says their number out loud, because everyone else anchors to it whether they mean to or not.
- Watch the unit. "In million km²" and "in km²" are different questions and the unit is printed under every prompt for exactly that reason.
- If you are hosting and someone shouts a number they immediately regret, take the second one. The recap can fix it either way, so there is no reason to be strict about it.
Variants and house rules
Price is Right
Built in as a scoring option. Go over the answer and your guess is dead regardless of how close it was. Punishes optimism, rewards the person who guesses 1.
Host types
One person holds the phone and types in what the room shouts. Much faster than passing, and the arguing while numbers are being entered is half the fun.
Teams of two
Pair up and agree on one number per team before it goes in. Watching two people negotiate their way to a single guess is a game in itself.
Order of magnitude only
House rule for mixed groups: score a point for being within 10x of the answer, no ranking. Nobody feels stupid and the game moves twice as fast.
Category duel
Pick one category and one difficulty, set it to five questions, and play it as a straight head-to-head. Great as a tiebreaker for a longer games night.
Guesstimate FAQ
How do you play Guesstimate?
A question with a numeric answer appears, everyone commits to a guess, and the true value is revealed. Closest guess scores 3, second closest 1, and an exact hit 5. Highest total after the last question wins.
How many players do you need?
Two minimum, twenty maximum. It works well at almost any size because everyone answers every question — nobody waits for a turn.
What is Price is Right mode?
A scoring option where going over the true answer disqualifies your guess entirely. Closest guess that is still at or under the answer wins the round.
Can you play without passing the phone around?
Yes. Host types mode lets one person enter everyone's number as they shout it out. It is faster, louder, and the numbers stay editable on one screen.
What happens if two people guess the same distance away?
They share the place. Both take the 3 points for closest, and the next distinct distance takes the runner-up point.
Can you fix a guess that was typed in wrong?
Yes. Every guess on the reveal screen is tappable, and retyping one re-scores that round and every total that depends on it.