Free Online Calculators
and Everyday Tools
Mortgage, loan, paycheck, health, math, text, PDF and conversion tools that work instantly in your browser. Every tool shows its formula, and your numbers are never stored.
Platform Categories
Calculators, converters and everyday utilities grouped by what you need to get done.
Finance
Mortgage, stamp duty, take-home pay, VAT and sales tax calculators.
Calculators
General-purpose numerical, percentage, and date calculators.
Health
Body mass index, caloric, and biometric calculation tools.
Education
GPA, grading scales, and academic milestone estimators.
Math
Algebraic, geometric, fraction, and statistical utilities.
PDF Tools
Secure, client-side and cloud PDF document utility pipeline.
Image Tools
Visual dimension resizing, modern format conversion, and SVG optimization.
Text Tools
Character counting, diff comparison, case conversion, and sanitization.
Generators
Cryptographic UUIDs, QR codes, secure passwords, and hashes.
Converters
Unit, currency, measurement, and timestamp transformation utilities.
Popular Tools
Free calculators and utilities that run in your browser. No sign-up, and your numbers are never stored.
Mortgage Calculator
Work out your monthly mortgage payment with country-specific rules for the US, UK, Canada, Australia, New Zealand and Singapore, including taxes, insurance, extra payments and a full amortization schedule.
UK VAT Calculator
Add VAT to a price or work out how much VAT is included in a total, at the UK standard (20%), reduced (5%), zero or a custom rate.
Canada GST/HST Calculator
Add or remove Canadian sales tax for any province or territory — GST, HST, PST, RST and QST — with each tax shown separately. Updated for 2026 rates.
Australia GST Calculator
Add 10% GST to a price, or work out the GST included in a total using the 1/11 rule — the quick way for invoices, quotes and receipts.
Loan Calculator
Estimate monthly repayments, total interest charges, and accelerated payoff terms for personal and commercial loans.
Paycheck Calculator
Calculate net take-home pay after federal, state, and mandatory social security tax withholdings for salary or hourly wages.
Percentage Calculator
Four percentage calculators in one: percent of a number, what percent A is of B, percentage change, and increasing or decreasing a number by a percentage.
Word Counter
Count words, characters, sentences and paragraphs as you type, with reading time, speaking time and common platform limits.
Merge PDF
Combine two or more PDF files into a single document, in the order you choose. Files are processed on your device and never uploaded.
Image Compressor
Shrink JPG, PNG and WebP images by adjusting the quality, with an instant before-and-after size comparison. Files never leave your device.
Engineered for Global Legal & Currency Conventions
Calculations vary across borders. A mortgage in Canada compounds semi-annually by statutory law, while in the United States it compounds monthly. VolexTool is built with dynamic market logic to handle true local financial models.
Popular calculators
- UK Take-Home Pay CalculatorSee your salary after income tax, National Insurance, pension and student loan for the 2026/27 tax year — per year, month or week.
- Hourly to Salary CalculatorTurn an hourly wage into yearly, monthly, bi-weekly and weekly pay, or work out the hourly rate behind a salary.
- Salary Sacrifice CalculatorCompare your take-home pay with and without a pension salary sacrifice and see what each £1 into your pension really costs you.
- Pay Calculator AustraliaSee your Australian take-home pay after income tax, the Medicare levy and HECS-HELP for 2026–27, per week, fortnight, month or year — from a salary or an hourly rate.
- HECS-HELP Repayment CalculatorSee how much HECS-HELP you repay each year and each pay under the ATO’s 2026–27 marginal repayment system, and compare it with 2025–26.
- UK VAT CalculatorAdd VAT to a price or work out how much VAT is included in a total, at the UK standard (20%), reduced (5%), zero or a custom rate.
- UK Stamp Duty CalculatorWork out the stamp duty on a house purchase in England, Northern Ireland, Scotland or Wales, including first-time buyer relief, second homes and the non-resident surcharge.
- Second Home Stamp Duty CalculatorCalculate stamp duty on a second home, holiday home or buy-to-let in England, Northern Ireland, Scotland or Wales, including the surcharge and when you can reclaim it.
- Scotland LBTT CalculatorWork out Land and Buildings Transaction Tax on a Scottish property, with first-time buyer relief and the 8% Additional Dwelling Supplement.
- Canada GST/HST CalculatorAdd or remove Canadian sales tax for any province or territory — GST, HST, PST, RST and QST — with each tax shown separately. Updated for 2026 rates.
- NSW Car Stamp Duty CalculatorWork out the motor vehicle stamp duty on a car registered in New South Wales, new or used, with the official rates.
- Paycheck CalculatorCalculate net take-home pay after federal, state, and mandatory social security tax withholdings for salary or hourly wages.
- Scotland Take-Home Pay CalculatorYour salary after Scottish income tax, National Insurance, pension and student loan for 2026/27, using all six Scottish tax bands.
Latest tax and money guides
- United Kingdom · Pensions & pay
What Salary Sacrifice Really Costs at Every UK Salary (2026/27)
- Australia · Income tax & pay
Australia’s Tax Cut from 1 July 2026: How Much More You Take Home at Every Salary
- Canada · Income tax & pay
Canada’s 2026 Tax Changes: The 14% Rate, New Brackets, CPP and EI — What It Means for Your Pay
- United Kingdom · Income tax & pay
UK Income Tax and Take-Home Pay 2026/27: Bands, National Insurance and What You Actually Keep
All 42 free calculators and tools
Finance
- Mortgage Calculator
- Loan Calculator
- Paycheck Calculator
- Payroll Calculator
- Compound Interest Calculator
- Hourly to Salary Calculator
- UK VAT Calculator
- Australia GST Calculator
- New Zealand GST Calculator
- Canada GST/HST Calculator
- Ontario HST Calculator
- UK Take-Home Pay Calculator
- Scotland Take-Home Pay Calculator
- UK Stamp Duty Calculator
- Second Home Stamp Duty Calculator
- Scotland LBTT Calculator
- NSW Car Stamp Duty Calculator
- Victoria Car Stamp Duty Calculator
- Pay Calculator Australia
- HECS-HELP Repayment Calculator
- Salary Sacrifice Calculator
Architected for Verifiable Integrity
A utility platform should be reliable, unencumbered by deceptive monetization, and mathematically accountable.
Transparent Formulas
Every calculation engine publishes its underlying mathematical equation, statutory sources, and amortization logic openly.
Zero Calculation Logging
Your financial figures, salary inputs, and biometric measurements are never transmitted to marketing trackers or stored on remote databases.
Multi-Market Precision
Architected from day one to handle specific regional compounding regulations, localized currencies, and measurement unit standards.
No Fabricated Metrics
We adhere to an anti-slop, verifiable data discipline: no invented reviews, fake ratings, or unsubstantiated accuracy claims.