How old are they, exactly?
Type a birthday and see the answer straight away — down to the second, if you want it.
Everything runs in your browser. Nothing you type is sent to us or saved.
The other calculators
- Bedtime & Sleep Calculator Find a bedtime that fits the morning you actually have. Enter a wake-up time and your child’s age to see when lights out needs to be. Free and instant.
- Snacks & Water Calculator A rough guide to how much water and how much fruit and veg a child gets through in a day, by age. Free, instant, and nothing is saved.
- Toy Math Adding and taking away, shown with objects a child can count on the screen. A visual way into early maths for ages 3 to 7. Free, no signup.
- Color Mixer Pick two paints and see what they make. A quick way to answer the question that comes up every single time the paints come out. Free and instant.
- Crawling & Walking Chart The usual age ranges for rolling, crawling, standing and first steps, shown as a chart. General information only — every child arrives in their own time.
- Baby Teeth Chart An interactive chart of all twenty baby teeth and the months each one usually appears. General information only — order and timing vary a lot.
All of them run entirely in your browser. Nothing you type is sent to us, stored, or used for anything — which matters most on the tools that ask for a birthday.