Free widgets

Embeddable UK Calculators

Add any of these free calculators to your own website. They stay up to date automatically on the latest 2026/27 rates, load only the tool (no ads, no site navigation), and include a credit link back to the source.

Each widget is a lightweight, responsive iframe plus a visible attribution link. Copy the snippet, paste it into your page's HTML, and you're done — the calculator inherits your container width. Free to use for any site, provided the "Powered by CalculatorDashboard" link stays in place. Questions? See the income & tax hub for the full range of tools.

Day Rate to Salary Calculator New

Convert a freelance day rate to a permanent-salary equivalent, and back.

For: Freelance & contractor blogs, gig-economy resources

<iframe src="https://www.calculatordashboard.com/calculators/income-tax/day-rate-to-salary/?embed=1" title="Day Rate to Salary Calculator" width="100%" height="720" style="max-width:560px;width:100%;border:1px solid #d0d8e4;border-radius:12px" loading="lazy"></iframe>
<p style="font:12px/1.5 -apple-system,Segoe UI,Roboto,sans-serif"><a href="https://www.calculatordashboard.com/calculators/income-tax/day-rate-to-salary/">Day rate to salary calculator</a></p>

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Umbrella (Inside IR35) Take-Home New

Shows why an umbrella take-home is far below the assignment rate.

For: Contractor communities, IR35 & umbrella advice sites

<iframe src="https://www.calculatordashboard.com/calculators/income-tax/umbrella-ir35-take-home/?embed=1" title="Umbrella (Inside IR35) Take-Home" width="100%" height="780" style="max-width:560px;width:100%;border:1px solid #d0d8e4;border-radius:12px" loading="lazy"></iframe>
<p style="font:12px/1.5 -apple-system,Segoe UI,Roboto,sans-serif"><a href="https://www.calculatordashboard.com/calculators/income-tax/umbrella-ir35-take-home/">Umbrella IR35 take-home calculator</a></p>

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Supply Teacher Day Rate New

Turns an agency day rate into an annual-equivalent salary and take-home.

For: Education & supply-agency blogs, teaching unions

<iframe src="https://www.calculatordashboard.com/calculators/income-tax/supply-teacher-day-rate/?embed=1" title="Supply Teacher Day Rate" width="100%" height="720" style="max-width:560px;width:100%;border:1px solid #d0d8e4;border-radius:12px" loading="lazy"></iframe>
<p style="font:12px/1.5 -apple-system,Segoe UI,Roboto,sans-serif"><a href="https://www.calculatordashboard.com/calculators/income-tax/supply-teacher-day-rate/">Supply teacher day rate to salary calculator</a></p>

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Pro-Rata Holiday Entitlement New

Statutory 5.6 weeks for part-time, starters, leavers and irregular hours.

For: HR blogs, SME advice hubs, payroll software sites

<iframe src="https://www.calculatordashboard.com/calculators/income-tax/pro-rata-holiday/?embed=1" title="Pro-Rata Holiday Entitlement" width="100%" height="720" style="max-width:560px;width:100%;border:1px solid #d0d8e4;border-radius:12px" loading="lazy"></iframe>
<p style="font:12px/1.5 -apple-system,Segoe UI,Roboto,sans-serif"><a href="https://www.calculatordashboard.com/calculators/income-tax/pro-rata-holiday/">Pro-rata holiday entitlement calculator</a></p>

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Statutory Sick Pay (SSP) New

The 2026 SSP rules — no waiting days, no Lower Earnings Limit.

For: HR blogs, SME advice hubs, payroll software sites

<iframe src="https://www.calculatordashboard.com/calculators/income-tax/statutory-sick-pay/?embed=1" title="Statutory Sick Pay (SSP)" width="100%" height="720" style="max-width:560px;width:100%;border:1px solid #d0d8e4;border-radius:12px" loading="lazy"></iframe>
<p style="font:12px/1.5 -apple-system,Segoe UI,Roboto,sans-serif"><a href="https://www.calculatordashboard.com/calculators/income-tax/statutory-sick-pay/">Statutory Sick Pay (SSP) calculator 2026/27</a></p>

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Pro-Rata Salary Calculator

Scale a full-time salary to part-time hours, with take-home.

For: Job boards, part-time & flexible-work resources

<iframe src="https://www.calculatordashboard.com/calculators/income-tax/pro-rata-salary/?embed=1" title="Pro-Rata Salary Calculator" width="100%" height="760" style="max-width:560px;width:100%;border:1px solid #d0d8e4;border-radius:12px" loading="lazy"></iframe>
<p style="font:12px/1.5 -apple-system,Segoe UI,Roboto,sans-serif"><a href="https://www.calculatordashboard.com/calculators/income-tax/pro-rata-salary/">Part-time pro-rata salary calculator</a></p>

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Required Salary Calculator

Work backwards from a target take-home to the gross salary needed.

For: Careers advice, recruitment & personal-finance blogs

<iframe src="https://www.calculatordashboard.com/calculators/income-tax/required-salary/?embed=1" title="Required Salary Calculator" width="100%" height="760" style="max-width:560px;width:100%;border:1px solid #d0d8e4;border-radius:12px" loading="lazy"></iframe>
<p style="font:12px/1.5 -apple-system,Segoe UI,Roboto,sans-serif"><a href="https://www.calculatordashboard.com/calculators/income-tax/required-salary/">Net-to-gross required salary calculator</a></p>

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Salary Inflation Adjustor

Compare a salary across tax years in real terms after Budget changes.

For: Unions, journalists, cost-of-living & pay-campaign sites

<iframe src="https://www.calculatordashboard.com/calculators/income-tax/compare-tax-years/?embed=1" title="Salary Inflation Adjustor" width="100%" height="760" style="max-width:560px;width:100%;border:1px solid #d0d8e4;border-radius:12px" loading="lazy"></iframe>
<p style="font:12px/1.5 -apple-system,Segoe UI,Roboto,sans-serif"><a href="https://www.calculatordashboard.com/calculators/income-tax/compare-tax-years/">Salary real-terms inflation comparison calculator</a></p>

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Overtime (Time and a Half)

Overtime pay at 1.5× and other multipliers, after tax and NI.

For: Shift-work, hospitality & trade-sector resources

<iframe src="https://www.calculatordashboard.com/calculators/income-tax/time-and-a-half/?embed=1" title="Overtime (Time and a Half)" width="100%" height="760" style="max-width:560px;width:100%;border:1px solid #d0d8e4;border-radius:12px" loading="lazy"></iframe>
<p style="font:12px/1.5 -apple-system,Segoe UI,Roboto,sans-serif"><a href="https://www.calculatordashboard.com/calculators/income-tax/time-and-a-half/">Overtime and time-and-a-half pay calculator</a></p>

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Mortgage Affordability Calculator New

How much can a buyer borrow? Income multiple vs net take-home budget, with stress test.

For: Estate agents, property portals & mortgage-broker blogs

<iframe src="https://www.calculatordashboard.com/calculators/mortgage/mortgage-affordability/?embed=1" title="Mortgage Affordability Calculator" width="100%" height="860" style="max-width:560px;width:100%;border:1px solid #d0d8e4;border-radius:12px" loading="lazy"></iframe>
<p style="font:12px/1.5 -apple-system,Segoe UI,Roboto,sans-serif"><a href="https://www.calculatordashboard.com/calculators/mortgage/mortgage-affordability/">Mortgage affordability calculator</a></p>

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Mortgage Repayment Calculator

Monthly repayments and total interest for any mortgage.

For: Estate agents, property portals & mortgage-broker blogs

<iframe src="https://www.calculatordashboard.com/calculators/mortgage/mortgage-repayment/?embed=1" title="Mortgage Repayment Calculator" width="100%" height="820" style="max-width:560px;width:100%;border:1px solid #d0d8e4;border-radius:12px" loading="lazy"></iframe>
<p style="font:12px/1.5 -apple-system,Segoe UI,Roboto,sans-serif"><a href="https://www.calculatordashboard.com/calculators/mortgage/mortgage-repayment/">Mortgage repayment calculator</a></p>

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