Just for fun
Fun calculators that use real figures, such as the stairs to the top of Everest, a pizza in steps and how many 5Ks it is to the Moon.
Featured calculator
Stairs to Everest
How many times up your own stairs it would take to climb the height of Everest.
Count my stairsTakes about a minute
Most used
Where most people start
The four just for fun calculators that get the most use.
Stairs to EverestSearch
Search just for fun
Only searches the 65 calculators in this topic.
Everything
All 65, sorted into shelves
Grouped by what you want to find out. Every one is in the new design.
Food and treats
Pizza, cake, roasts and biscuits, turned into steps.
18 calculators18 in the new design
- Pizza to stepsPizza slices, pictured as a walk.Open
- Tea calories in a lifetimeA lifetime of tea, added up.Open
- Biscuits by walkingYour walk, counted in biscuits.Open
- Tea and hydrationTea, as hydration and bathtubs.Open
- Sunday roasts walkedYears of walking, as Sunday roasts.Open
- Snack to steps converterA snack, pictured as steps.Open
- Takeaway to treadmill timeYour takeaway, as treadmill time.Open
- Pizza slice paceOne slice of pizza, in running time.Open
- Chocolate bar walk-offA chocolate bar, five ways.Open
- Christmas dinner walkChristmas dinner, as a Boxing Day walk.Open
- Easter egg energyAn Easter egg, shared and hunted.Open
- Birthday cake slicesBirthday cake, sliced and shared.Open
- Holiday buffet balanceYour buffet plate, balanced.Open
- BBQ plate builderBuild a colourful BBQ plate.Open
- Pancake Day energyPancakes, toppings and the Olney race.Open
- Trick or treat stepsTrick or treat steps and sweets.Open
- Bonfire night walkBonfire night: the walk and the treats.Open
- How many water bottles?Your drinks, in bottles.Open
Epic distances
Everest, the Moon and the UK coast.
12 calculators12 in the new design
- Steps to the UK coastYour daily steps, all the way round Britain.Open
- Stairs to EverestYour stair sessions, all the way up.Open
- Stairs to climb Ben NevisBen Nevis, flight by flight.Open
- 5Ks to the MoonYour 5Ks, as a trip to the Moon.Open
- Squats to lift a busYour squats, weighed against a bus.Open
- Gym bag versus baby elephantYour gym bag, in baby elephants.Open
- Laps around WembleyYour distance, round the national stadium.Open
- Supermarket aisle marathonYour shopping trips, as marathons.Open
- School run marathonThe school run, as marathons.Open
- Dog walk world tourYour dog walks, plotted round the world.Open
- Commute to EverestYour commute stairs, as a mountain.Open
- Podcasts in marathon trainingMarathon training, in podcasts.Open
Games and challenges
Bingo cards, spinners and spirit animals.
14 calculators14 in the new design
- Workout streak hall of fameYour streak, with badges.Open
- Personal best confettiConfetti for a new PB.Open
- Fitness bingo cardA bingo card of short activities.Open
- Mini challenge spinnerA random mini challenge.Open
- Excuse translatorToday's excuse, translated.Open
- Bad weather workout swapIndoor swaps for a rained off session.Open
- Sweat and weather indexHeat index and sweat on a workout.Open
- Will I need a jacket?Jacket or not, for your run.Open
- Tea break stretch rouletteStretches while the kettle boils.Open
- Sofa to sweat scoreA short activity to do today.Open
- Office OlympicsTeam points for moving at work.Open
- Dad dance scorePoints for each dance move.Open
- Hydration petA water drop pet that tracks your drinks.Open
- Workout spirit animalFind your workout spirit animal.Open
Days out and the rest
Theme parks, museums, airports and more.
21 calculators21 in the new design
- Sessions left in my lifeThe sessions still ahead of you.Open
- Playlist paceFinish as the last song ends.Open
- Festival stepsYour festival, in steps and dancing.Open
- How many workouts have I done?Every workout you have done, added up.Open
- Iron distance training hoursHours to an iron distance finish.Open
- Couch to not out of breathWeeks until you can jog and talk.Open
- Fitness age in dog yearsYour fitness age, the dog's way.Open
- Park benches you walk pastYour walk, counted in benches.Open
- Calories burned laughingEnergy used by laughing.Open
- Kitchen discoSongs danced round the kitchen.Open
- Kettles boiled by your workoutYour workout, as cups of tea.Open
- Pub garden unitsAn afternoon in the pub, in units.Open
- Wedding dance caloriesA wedding reception, danced.Open
- Lifetime sleep hoursYour years asleep, so far and ahead.Open
- Mondays until your goalYour goal, counted in Mondays.Open
- Songs in my runYour run, counted in songs.Open
- Garden centre stepsA garden centre wander, in steps.Open
- Theme park stepsA theme park day, in steps.Open
- Airport gate walkSecurity to gate, timed.Open
- Museum day stepsA museum day, in steps.Open
- New Year resolution survivalYour resolution's odds, from research.Open
Good to know
Where the numbers come from
About these numbers
A fun way to see your numbers
A fun, relatable way to look at your numbers. Every sum uses real figures, like the height of Everest (8,849 metres) and the distance to the Moon (about 384,400 km).
Sources
Where we get them
- NHSHealth A to Z and the NHS BMI calculator
- NICE NG246Overweight and obesity guideline, 2025
- UK Chief Medical OfficersPhysical activity and alcohol guidelines
- SACNScientific Advisory Committee on Nutrition
Last checked 21 October 2026. Each calculator lists its own sources too.
Help
Just for fun
These are here to make you smile, not to set targets. If food or exercise has stopped feeling fun, that is worth a chat with your GP, and Beat has a free helpline on 0808 801 0677.
Goals
Got a goal in mind?
Guided plans that walk you through the right calculators in the right order, with NHS guidance along the way.
Have a play