Every free calculator, converter and text tool on Tools Veria, grouped by topic. Each one runs in your browser, explains its working and uses official UK figures from sources such as HMRC, GOV.UK and Ofgem where a rate or allowance applies. New tools are added every week, so this list grows as they go live.
In This Guide
Energy & Bills 5 tools
- Electricity Cost CalculatorWhat any appliance costs to run per hour, day or year.
- Energy Bill CalculatorYearly gas and electricity bill at price cap rates.
- Heat Pump Running Cost CalculatorYearly, monthly and daily heat pump costs vs a gas boiler.
- kWh Cost CalculatorTurn kWh or meter readings into pounds and pence.
- Solar Panel CalculatorSavings, export income and payback for solar PV.
Salary & Work 5 tools
- Holiday Entitlement CalculatorWorking pattern and dates in, statutory leave in days or hours out.
- Holiday Pay CalculatorStatutory holiday and the 12.07% irregular hours rule.
- Hourly to Annual SalaryConvert hourly pay to yearly salary and back.
- Maternity Pay CalculatorStatutory Maternity Pay for 2026/27, week by week.
- National Insurance CalculatorGross pay in, employee and employer Class 1 NI out.
- Notice Period Calculator UKService dates in, statutory notice and its end date out.
- Overtime CalculatorTime and a half, double time and total weekly pay.
- Paycheck Deductions EstimatorUS 2026 federal tax, FICA and take home pay.
- Postgraduate Loan Repayment CalculatorYour salary in, Postgraduate Loan repayments per month out.
- Pro Rata Salary CalculatorPart time pay by hours or days, plus holiday.
- Redundancy Pay CalculatorStatutory redundancy pay for 2026/27.
- Salary Calculator UK2026/27 take home pay after tax, NI and pension.
- Statutory Sick Pay CalculatorEarnings and days off sick in, Statutory Sick Pay out.
- Student Loan Plan 1 CalculatorCheck the Plan 1 deduction on your payslip and when the loan ends.
- Student Loan Plan 2 CalculatorSalary in, Plan 2 repayment, interest and overpayment verdict out.
- Student Loan Plan 4 CalculatorYour Scottish loan and salary in, a year by year payoff plan out.
- Student Loan Plan 5 CalculatorYour salary in, Plan 5 repayments per month and year out.
- Student Loan Repayment CalculatorPick your plan and salary, see what you repay and when it ends.
- Time Card CalculatorWeekly hours, overtime and pay from your timesheet.
Tax & VAT 5 tools
- Capital Gains Tax Calculator UKIncome, sale price and costs in, 2026/27 CGT out.
- Child Benefit Tax Charge CalculatorIncome and children in, Child Benefit you repay out.
- Dividend Tax Calculator2026/27 dividend tax with the £500 allowance.
- Freelancer Invoice Tax CalculatorHow much tax to set aside from each invoice.
- Inheritance Tax Calculator UKEstate, home and gifts in, Inheritance Tax due out.
- Limited Company Take-Home Pay CalculatorCompany profit and salary in, director take-home pay out.
- Marriage Allowance CalculatorBoth incomes in, eligibility and the yearly tax saving out.
- Mileage Allowance CalculatorHMRC 55p and 25p business mileage claims.
- Payment on Account CalculatorLast year’s tax bill in, January and July payments out.
- Reverse VAT CalculatorRemove 20% or 5% VAT from any UK price.
- Salary vs Dividend CalculatorCompany profit in, take-home pay for four pay mixes out.
- Self Employed Tax CalculatorIncome tax and Class 4 NI for sole traders.
- Tax Code CalculatorTax code in, meaning and tax free allowance out.
- VAT Calculator IrelandAdd or remove 23%, 13.5% and 9% Irish VAT.
Finance & Business 6 tools
- A/B Test Significance CalculatorStatistical significance and sample size for A/B tests.
- AdSense Revenue EstimatorMonthly and yearly earnings from page views and RPM.
- Affiliate Commission CalculatorCommission per sale and monthly earnings.
- Affiliate ROI and EPC CalculatorEarnings per click, ROI and break even CPC.
- Auto Loan Interest SaverInterest and months saved by overpaying a car loan.
- Black-Scholes CalculatorOption prices and Greeks with the Black-Scholes model.
- Cap Rate CalculatorNet operating income and cap rate for rentals.
- Compound Interest CalculatorGrow savings with monthly deposits, year by year.
- Compound Interest Dividend CalculatorDividend growth with reinvestment over the years.
- Conversion Rate CalculatorConversion rate, revenue per visitor and uplift.
- CPC and CTR CalculatorCost per click, click through rate and CPA.
- CPM CalculatorCost per thousand impressions, cost or reach.
- Credit Card Payoff CalculatorMonths to clear a card and total interest.
- Customer Acquisition Cost CalculatorCAC by channel and months to pay it back.
- Customer Churn Rate CalculatorMonthly and annual churn and customer lifetime.
- Customer Lifetime Value CalculatorCLV and the LTV to CAC ratio.
- Dividend Yield CalculatorYield, annual income and yield on cost for any share.
- Email Open Rate and CTR CalculatorOpen rate, click rate, CTOR and bounce rate.
- Emergency Fund CalculatorHow much to keep aside and how long it takes to save.
- EMI CalculatorMonthly instalment with an amortisation table.
- Forex Pip Value CalculatorPip value for any pair, lot size and account currency.
- Fund Fees Calculator (OCF)How fund charges and platform fees eat into returns.
- Inflation CalculatorWhat money from any year since 1988 is worth today.
- Inflation Purchasing Power CalculatorWhat your money will buy in future at any inflation rate.
- Lead Conversion Funnel CalculatorLeads, MQLs, SQLs and customers from your traffic.
- Loan CalculatorMonthly repayments, interest and a yearly schedule.
- Markdown CalculatorSale price, margin and break even after a markdown.
- Markup CalculatorSelling price and profit from cost and markup.
- Mortgage Overpayment CalculatorInterest and years saved by overpaying.
- Mortgage Refinance CalculatorMonthly saving and break even from remortgaging.
- Net Worth CalculatorAssets minus debts, with home equity and liquid wealth.
- Online Receipt GeneratorPrintable receipts for your own sales.
- P/E Ratio CalculatorPrice to earnings, earnings yield and PEG ratio.
- PCP CalculatorMonthly car finance with balloon payment.
- Pension Tax Relief CalculatorSalary and pension contribution in, tax relief out.
- Profit Margin CalculatorGross profit, margin and markup in one go.
- Rent vs Buy CalculatorNet wealth from renting or buying over time.
- ROAS CalculatorReturn on ad spend and break even ROAS.
- Rule of 72 CalculatorHow long money takes to double at a given return.
- Salary Sacrifice Pension CalculatorSalary and sacrifice in, tax and NI saved out.
- Savings Interest CalculatorInterest earned and tax on savings with AER.
- Startup Runway CalculatorMonths of cash left and your zero cash month.
- Stock Average Down CalculatorNew average price after buying more shares.
- Stock Options Profit CalculatorCall and put profit, breakeven and payoff table.
- Student Loan Refinance CalculatorCompare a private student loan with a new rate.
- Website Valuation CalculatorWhat a website is worth from monthly profit.
Motoring 2 tools
- Fuel Cost CalculatorPetrol or diesel cost for any journey, per mile and per person.
- L/100km to MPG ConverterConvert European fuel economy to UK or US mpg.
- MPG CalculatorMiles per gallon, L/100km and cost per mile.
Everyday Maths 2 tools
- Average CalculatorMean, median, mode and range of any list.
- Discount CalculatorSale price, saving and stacked discounts.
- Fraction to Decimal CalculatorExact and recurring decimals from any fraction.
- Percentage Difference CalculatorPercentage difference and change between two numbers.
- Percentage Increase CalculatorPercent change between two numbers, up or down.
- Random Name PickerFair random winners from your list of names.
- Ratio CalculatorSimplify, scale and share any ratio.
- Unit Price Comparison CalculatorFind the best value per 100 g, litre or unit.
Date & Time 2 tools
- Days Between Dates CalculatorDays, weeks and months between two dates.
- Time Duration CalculatorHours and minutes between two times.
- Working Days CalculatorBusiness days between dates with UK bank holidays.
Converters 6 tools
- Cups to Grams ConverterUK and US cups to grams for baking ingredients.
- EU to UK Dress SizeWomen’s sizes across UK, EU, US, FR, IT and AU.
- Gas Mark ConverterGas mark, Celsius, fan oven and Fahrenheit.
- Kg to Stone ConverterKilograms to stone and pounds.
- Ring Size ConverterUK, US and EU ring sizes with mm chart.
- Roman Numeral ConverterNumbers to Roman numerals and back.
- Stone to Kg ConverterStone and pounds to kilograms.
- UK to EU Shoe SizeShoe sizes for women, men and kids.
Text & SEO 5 tools
- Case ConverterUpper, lower, title, sentence and code cases.
- Keyword Density CheckerKeyword density and top phrases in your text.
- Meta Tag GeneratorSEO, Open Graph and Twitter meta tags in one go.
- Number to Words ConverterNumbers, cheques and ordinals in British English.
- Remove Line BreaksClean up pasted text into one tidy paragraph.
- Reverse Text GeneratorBackwards, mirrored and upside down text.
- SERP Preview ToolSee how your title and description look in search.
- Slug GeneratorSEO friendly URL slugs from any title.
- Small Text GeneratorSmall caps, superscript and subscript text to copy.
- Username GeneratorRandom usernames and gamer tags in four styles.
Developer Tools 7 tools
- Binary to Decimal ConverterBinary, decimal, hex and octal with working.
- Cron Expression GeneratorBuild and explain cron schedules.
- Image to Base64Encode images as Base64 data URIs.
- JSON to CSV ConverterTurn JSON arrays into clean CSV files.
- SHA256 and MD5 GeneratorHash text or files with MD5 and SHA algorithms.
- UK Address GeneratorFictional UK test addresses for forms.
- Unix Timestamp ConverterEpoch time to date and back.
- UUID GeneratorGenerate and validate v4 UUIDs in bulk.