Family & Fun

Addition & Subtraction for Kids

A hands-on game to add and take away objects and watch the numbers change.

Base Ten Blocks

Visual addition and subtraction with base ten blocks — see regrouping and borrowing step by step.

Butterfly Life Cycle for Kids

Follow the four stages of a butterfly: egg, caterpillar, chrysalis and butterfly.

Color Mixing Lab

Mix red, yellow and blue to make orange, green and purple, and learn primary and secondary colors.

Continents and Oceans

Tap the world map to discover the 7 continents and 5 oceans, hear their names and play a find-it game.

Division for Kids

Share objects into equal groups one by one, see the remainder appear and the division written out.

Fraction Pizza

Build, compare and find equivalent fractions by tapping slices of a pizza.

Gravity for Kids

Drop objects and watch gravity pull them down, and compare gravity on Earth, the Moon and other planets.

Greater Than, Less Than

Compare numbers with the hungry-crocodile game — pick greater than, equal to or less than.

Interactive Alphabet

Tap each letter to hear it, see a word that starts with it, and play the finding and ordering games.

Interactive Periodic Table

All 118 elements: tap one for its data and a real-world fact, filter by category or compare two.

Kids Calculator

A big, colourful, friendly calculator for children to practise the four basic operations.

Moon Phases

Walk through the 30 nights of the lunar month and watch all 8 phases change, plus a guessing game.

Multiplication for Kids

See multiplication as equal groups: 3 × 4 is three groups of four, and the times tables click.

Number Line

Visual addition and subtraction within 20 — a friendly frog hops each step.

Parts of a Plant for Kids

Tap the roots, stem, leaves and flower to learn what each part of a plant does.

Shapes for Kids

Learn 2D shapes: tap each shape to see its name and number of sides, then play a game.

Sink or Float Game

Predict whether each object will sink or float, drop it in the water and learn about density.

Skip Counting Game

Jump along the number line counting by 2s, 5s and 10s, see the pattern and try the quiz.

States of Matter for Kids

Explore solids, liquids and gases and heat or cool matter to watch it change state.

Telling Time

Learn to read an analog clock: drag the hands to explore, then take a leveled quiz.

Telling Time for Kids

Learn to read a clock: move the hands, read the time and play a set-the-clock game.

The Cell for Kids

Explore a cell like a tiny house: the membrane, nucleus, cytoplasm and what each part does.

The Solar System for Kids

Explore the Sun and its eight planets, from tiny Mercury to giant Jupiter.

The Water Cycle for Kids

Follow a drop of water through evaporation, condensation, precipitation and collection.

Aquarium Size Calculator

Fish tank volume in litres and gallons, plus a stocking guide, from its dimensions.

Cat Age Calculator

Convert your cat's age to human years with the standard feline chart.

Cat Food Calculator

Estimate how much to feed your cat from its weight, life stage and food.

Cat Pregnancy Calculator

Your cat's likely kittening due date from the mating date, with the normal range.

Chickens for Eggs Calculator

How many hens you need for the eggs you want each week.

Dog Food Calculator

Estimate how much to feed your dog from its weight, life stage and food.

Dog Pregnancy Calculator

Your dog's likely whelping due date from the mating date, with the normal range.

Dog Years Calculator

Convert your dog's age to human years by size, with the science-based estimate too.

Horse Age Calculator

Convert your horse's age to human years with the standard equine chart.

Litter Box Calculator

Find how many litter boxes you need with the one-per-cat-plus-one rule.

Rabbit Age Calculator

Convert your rabbit's age to human years with a simple estimate.

Calories Burned Calculator

Calories burned by activity from your weight and duration (METs).

One-Rep Max Calculator

Estimate your 1RM from a set of reps, with training percentages.

Pace Calculator

Convert between running pace, time and distance.

Race Time Predictor

Predict your race time at any distance from a recent result (Riegel).

World Cup 2026 Players Countdown

From 1,248 players to 26 world champions: how the field shrank round by round, with every real result — Spain beat Argentina in the final.

Countdown Calculator

A live countdown to any date and time — days, hours, minutes, seconds.

Event Food Calculator

How much food to serve at an event from guest count and type.

Party Drinks Calculator

How much beer, wine and spirits to buy for a party, plus cocktail recipes scaled to your guests.

Wedding Budget Calculator

Estimate a wedding total from guests, catering, venue and extras.

Baby Name Generator by Numerology

Baby name ideas whose numerology number, with your surname, matches a quality you pick.

Big Number Calculator

Turn huge amounts of time into a real date from today.

Binge-Watch Calculator

How many hours and days it takes to binge a whole series.

Celebrity Net Worth Calculator

The estimated fortune of famous people, compared to your own income.

Chinese Gender Predictor

Boy or girl? The traditional Chinese method from the mother's age and conception month.

Chinese Zodiac Calculator

Your Chinese zodiac animal and element from your birth year.

Daily Number Puzzle

Reach 24 using four numbers and + − × ÷ — a fresh brain teaser every day.

Day of the Week Calculator

What day of the week any date fell on, plus how many days ago.

Dice Probability Calculator

The exact odds of rolling any total with any number of dice and sides.

Hail Mary Interstellar Travel

How long to reach the stars of Project Hail Mary — Tau Ceti and Erid — at different speeds, with an animated ship.

Interplanetary Travel

Pick a planet and a speed, then watch a ship make the trip — the time reveals on arrival.

Lottery Odds Calculator

Your real odds of winning a lottery jackpot from the pool size and picks.

Name Compatibility Calculator

The classic FLAMES name game — enter two names and reveal the relationship.

Numerology Calculator

Life Path, Destiny and Soul numbers from your birth date and name.

Reading Time Calculator

How long a text takes to read from its word count and reading speed.

Relationship Calculator

How long you've been together, in years, months and days, with your next anniversary.

Screen Time in Perspective

See what your daily screen time adds up to over years — in movies, books and more.

Space Travel Time Calculator

How long to reach the Moon, Mars or the stars at any speed.

Special Birthdays Calculator

Find the dates of your milestones: your 10,000th day alive, your billionth second, your golden birthday and more.

Your Age on Other Planets

How old you'd be on Mercury, Mars or Neptune, with an animated solar system.

Zodiac Compatibility Calculator

Zodiac signs of two dates and an element-based compatibility score.

4th of July Countdown

Live countdown to US Independence Day, with an animated flag. Rolls over to next year automatically.

Age Countdown Calculator

Your exact age in years, months and days, plus a live countdown to your next birthday.

Argentina Independence Day Countdown

Live countdown to the 9 de Julio, Argentina's Independence Day. Rolls over to next year automatically.

Black Friday & Cyber Monday Countdown

Live countdown to Black Friday and Cyber Monday. Rolls over to next year automatically.

Brazil Independence Day Countdown

Live countdown to the 7 de Setembro, Brazil's Independence Day. Rolls over to next year automatically.

Chile Fiestas Patrias Countdown

Live countdown to the 18 de Septiembre, Chile's national day. Rolls over to next year automatically.

Chinese New Year Countdown

Live countdown to the next Chinese New Year (Spring Festival). Rolls over each year automatically.

Christmas Countdown

Live countdown to December 25 with falling snow and a lit tree. Rolls over to next year automatically.

Colombia Independence Day Countdown

Live countdown to the 20 de Julio, Colombia's Independence Day. Rolls over to next year automatically.

Commonwealth Games 2026 Tracker

Countdown to Glasgow 2026 and a sortable medal table for the 74 competing nations.

Easter Countdown

Live countdown to the next Easter Sunday. Works out the moveable date automatically.

Father's Day Countdown

Live countdown to Father's Day by country. Pick your country and it adjusts to that date.

Halloween Countdown

Live countdown to Halloween, October 31. Rolls over to next year automatically.

Mexico Independence Day Countdown

Live countdown to the 16 de Septiembre, Mexico's Independence Day. Rolls over to next year automatically.

Mother's Day Countdown

Live countdown to Mother's Day by country. Pick your country and it adjusts to that date.

New Year Countdown

Live countdown to January 1 with days, hours, minutes and seconds. Rolls over automatically each year.

Thanksgiving Countdown

Live countdown to the fourth Thursday of November. Recalculates the date and rolls over each year.

Tour de France 2026 Tracker

Which stage the race is on, how many are left, and the kilometres covered and remaining.

Valentine's Day Countdown

Live countdown to Valentine's Day, February 14. Rolls over to next year automatically.