Free UK HR tools

Free UK HR calculators that show their working.

Seven interactive calculators for the decisions UK employers actually make — holiday, sick pay, absence, hiring cost, hours and notice. Every rate is GOV.UK-sourced and dated, every result shows its arithmetic, and nothing asks for your email.

Every step shown
GOV.UK-sourced, dated rates
No sign-up, no lead gate

The calculators

5.6 weeks · 28-day capHoliday & leaveHoliday entitlement calculatorHow much holiday is this person owed — starters, leavers, part-time?£123.25/week · day oneSickness & absenceStatutory Sick Pay (SSP) calculatorWhat sick pay is due, from day one, week by week?B = S² × D · 52-week windowSickness & absenceBradford Factor calculatorIs this absence pattern something to look at?ONS average 4.4 days/yrSickness & absenceAbsence cost calculatorWhat is absence actually costing the team?48-hour average · 17 weeksPay & hiring costWorking hours calculatorWhat did the timesheet actually add up to?NI 15% · pension 3%Pay & hiring costTrue cost of an employee calculatorWhat will this hire really cost a year?1 wk/year · 12-week capLeaving & noticeNotice period calculatorHow much notice applies — statutory or contract?

The rates behind every answerAll 2026/27 statutory rates on one page — dated, GOV.UK-sourced and shared with every calculator here, so the numbers cannot drift apart. Reviewed 28 July 2026. ↗

Calculation guides

Two topics stay source-led guides until each earns its tested calculator — a confident wrong number is not a useful lead magnet.

Statutory Maternity Pay (SMP) guideThe SMP inputs to confirm before any payment arithmetic. TOIL guideA transparent TOIL balance from an agreed conversion.

Questions worth asking any free calculator

Are these calculators really free?: Yes — no sign-up, no email gate, no PDF ransom. The numbers never leave your browser: there are no network calls, no analytics events and no storage in any calculator on this page.
Where do the rates come from?: A single pinned statutory-rates source, verified against live GOV.UK pages and shared by every calculator and the rates page — so an answer here can never use a rate the rates page does not show. Each tool links its official source and names its maintenance owner.
How current are the figures?: The 2026/27 rates took effect on 6 April 2026 and were last verified on 28 July 2026; the next scheduled review is the April uprating. Every calculator page shows the same dates, because they read the same source.