Site index
Every page on BabyData in one place: 31 baby names, tools and data pages. Looking for something specific? Try the search page. For every individual name and its ONS rank, see the baby names hub.
Baby names
- Baby name generator: UK names by style | BabyData Generate a shortlist of UK baby names by sex and style (classic, modern, nature, vintage, short or international) from a hand-curated list of names commonly registered in England and Wales.
- Baby name lists by theme: nature, vintage, short and more | BabyData Curated baby name lists by theme, every name drawn from the official ONS top 50 with its real UK popularity: nature, flower, gender-neutral, short, vintage, royal, mythological and strong names.
- Most popular UK baby names , from the ONS | BabyData The most popular baby names in England and Wales in , ranked from the official ONS Baby names dataset, with the real number of babies given each name. Search any name for its ONS rank, popularity and meaning.
- Sibling name matcher: names that go with your child | BabyData Enter your child’s name and get sibling names that share its style but avoid the same starting sound or a rhyme, from a hand-curated list of UK names. Shows its working.
Due date and ovulation
- Conception date calculator: from due date or last period | BabyData Estimate the likely conception date from your due date or the first day of your last period. Conception is about 14 days after your last period, or the due date minus 266 days. Shows its working and cites the NHS dating method.
- Due date, ovulation and pregnancy week calculators | BabyData Estimate your due date from your last period, conception date or IVF transfer, find your fertile window, and check how many weeks pregnant you are. Each tool shows its working and cites the NHS.
Pregnancy tools
- Baby gender prediction (just for fun) | BabyData A novelty baby gender predictor based on the old Chinese gender chart, clearly labelled as just for fun with no scientific basis. The only reliable way to find out is an ultrasound scan or a medical test.
- Contraction timer: time how long and how far apart | BabyData A simple contraction timer: tap start and stop to record how long each contraction lasts and the gap between them, with a rolling average and the 5-1-1 guide. Runs in your browser, nothing stored. Informational only, not medical advice.
- Pregnancy week calculator and sibling age gap tool | BabyData Check how many weeks pregnant you are and which trimester you are in, and work out the age gap between two children, including which UK school year each falls in. Editorially reviewed and cited.
- School year calculator: when will my child start school? | BabyData Work out which England school year your child falls in and the September they start Reception, using the 1 September cutoff. A child born on or before 31 August starts Reception the September after they turn 4.
Maternity pay and money
- Childcare cost calculator: weekly, monthly and yearly | BabyData Turn a UK nursery or childminder hourly or daily rate and your weekly hours into the weekly, monthly and annual cost, and see the cost after England free funded hours. Shows its working, cited to the Coram Childcare Survey and gov.uk.
- Cost of a baby calculator: first-year estimator | BabyData Estimate what a baby costs in the first year from your own choices on equipment, feeding, nappies, clothing and childcare. Itemised and shown, with figures cited to the Child Poverty Action Group cost-of-a-child research.
- Free childcare hours checker: England 15 and 30 hours | BabyData Check whether your child qualifies for free England childcare hours: 15 universal hours for all 3 and 4 year olds, and up to 30 hours for eligible working parents from 9 months until school age. Shows its working, cited to gov.uk.
- Shared Parental Leave (SPL) planner | BabyData Plan Shared Parental Leave: from the maternity leave and pay already taken, see how many of the 52 leave weeks and 39 pay weeks are left to share between both parents as SPL and ShPP. Shows its working, cited to gov.uk.
- Statutory maternity pay calculator and the cost of a child | BabyData Estimate your statutory maternity pay across the 39 weeks: 90% of your earnings for the first 6 weeks, then the lower of the gov.uk flat rate or 90%. Plus the data on what raising a child costs in the UK.
Guides
- Guides: due dates, ovulation, maternity pay and baby names | BabyData Plain-English BabyData guides on how your due date is calculated, understanding your fertile window, UK maternity pay and leave, and how to choose a baby name. Each cites its official UK source and links to the tool.
- How to choose a baby name | BabyData A practical, data-led way to choose a baby name: check ONS popularity so you know how common it is, weigh the meaning and origin, say it with your surname, test the initials, and try it against any sibling names.
- How your due date is calculated | BabyData Your due date is estimated as 40 weeks (280 days) from the first day of your last period, using Naegele’s rule, the way the NHS dates pregnancy. Here is how the count works from LMP, conception or IVF, and why a scan can move it.
- UK maternity pay and leave explained | BabyData Statutory Maternity Pay runs for up to 39 weeks: 90% of your earnings for the first 6 weeks, then the lower of the gov.uk flat rate or 90%. Here is who qualifies, how the rule works and how it fits with maternity leave.
- Understanding your fertile window and ovulation | BabyData Ovulation usually happens about 14 days before your next period, and the fertile window is the day of ovulation plus the 5 days before it. Here is how to estimate yours and why cycle length matters. Informational, not medical advice.
Names and births data
- UK baby names and births data, from the ONS | BabyData The headline UK baby data: the most popular names, the number of births, the birth rate and the average age of mothers, each cited to the ONS. The source the annual baby-names story is built on.
UK baby statistics
- UK baby names and births statistics 2026 | BabyData The headline UK baby statistics: the most popular names, the number of births, the birth rate and the average age of mothers, each cited to the ONS, National Records of Scotland or NISRA. A citeable reference, refreshed on release.
About and editorial
- About BabyData BabyData is an independent UK baby names and pregnancy information service, operated by Best Business Loans Ltd, with a named editor, cited sources and editorially reviewed pregnancy content.
Editorial team
- , Editor, BabyData is the editorial desk behind BabyData, the UK baby names and pregnancy-tools site.
- Editorial team The named editorial team behind BabyData.
Home
- BabyData: UK baby names and pregnancy tools, built on official data Free UK baby tools and data: due date, ovulation, pregnancy weeks, sibling age gap and maternity pay calculators, plus the most popular UK baby names and births data from the ONS. Every tool shows its working.
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api
- Data API and MCP server for AI agents | BabyData BabyData exposes its baby-and-pregnancy calculators as a free, read-only JSON API and MCP server: due date, ovulation, pregnancy weeks and UK statutory maternity pay. Each response returns the rule and a primary UK source. Informational only, not medical advice.