Calculator categories

Working Time Tools

Calculators for working out how long you worked: daily hours, shift lengths, breaks, weekly totals and monthly averages. Every tool handles overnight shifts and gives a decimal hours figure for payroll.

• UK Hours Worked Calculator — Turn a daily start, finish and break into daily, weekly and monthly hours worked.
• UK Monthly Working Hours Calculator — Convert weekly hours into an average month, a four-week month and a full year.
• UK Shift Hours Calculator — Calculate gross shift length, total breaks and net paid time, including overnight shifts.
• UK Shift Timesheet Calculator — Log a shift with company, date and times to get actual hours plus weekly and monthly totals.
• UK Weekly Working Hours Calculator — Add up a week of hours from a daily pattern and compare it with the 48-hour weekly limit.
• UK Working Hours Calculator — Work out total hours, minutes and decimal hours from a start time, finish time and break.
• UK Working Hours With Break Calculator — Separate paid and unpaid breaks to see exactly which hours you are paid for.

Salary & Pay Tools

Convert between annual salary and hourly rate, work out gross pay for a week or month, and calculate overtime at any multiplier. All figures are gross, before tax and National Insurance.

• UK Hourly Rate to Salary Calculator — Turn an hourly rate into daily, weekly, monthly and annual gross pay.
• UK Overtime Calculator — Calculate normal pay, overtime pay and total gross pay at any overtime multiplier.
• UK Salary to Hourly Rate Calculator — Turn an annual salary into hourly, daily, weekly and monthly gross pay.

Employment Tools

Date and entitlement calculators for the employment relationship: notice periods, resignation dates, contract end dates, probation periods and rest breaks. General information only, never legal advice.

• UK Contract End Date Calculator — Add days, weeks, months or years to a contract start date to find its end date.
• UK Notice Period Calculator — Work out the last day of your notice period in days, weeks or months.
• UK Probation End Date Calculator — Find when a probation period ends from the employment start date.
• UK Resignation Date Calculator — Find your expected final working day after handing in your resignation.
• UK Rest Break Calculator — See the rest break guidance that applies to a shift length and worker age.

Date & Deadline Tools

Count working days between dates or add business days to a date. Bank holidays for England & Wales, Scotland and Northern Ireland are applied from an editable list, so the tools stay accurate year after year.

• UK Business Days Calculator — Count business days between two dates, excluding weekends and UK bank holidays.
• UK Business Days From Date Calculator — Find the date a set number of business days before or after any date.
• UK Working Days Between Dates Calculator — See the working days, weekend days and bank holidays between two specific dates.
• UK Working Days Calculator — Count working days in any date range, with region-specific bank holidays.

Business Tools

Tools that help with quoting, invoicing deadlines and rate setting. More business calculators — VAT, invoice totals, profit margin and freelance day rate — are planned for this section.

Other UK Calculators

Everyday conversions that do not belong to a single category, including decimal hour conversion and the time between two clock times.

• UK Decimal Hours Calculator — Convert hours and minutes to decimal hours and back again for payroll and timesheets.
• UK Hours Between Times Calculator — Find the exact time between any two clock times, including across midnight.