Calks.UK – UK Calculators
Tax, salary, mortgage & more
Free · Designed for iPad. Not verified for macOS.
Calks.UK puts 331 free UK calculators in your pocket — and they all work offline, with no sign-up, no ads, and nothing leaving your phone.
Every calculation runs locally on your device, so your numbers stay private. Figures track the latest UK rates and thresholds for the 2026/27 tax year, and the app refreshes itself automatically when new calculators or rate changes go live — so you're never stuck on out-of-date numbers.
CALCULATE ANYTHING UK
• Tax & HMRC — Income Tax, National Insurance, take-home pay, Scottish Income Tax, dividends, Capital Gains, Corporation Tax, Self Assessment
• Pay & Salary — salary to hourly, pro-rata, overtime, payslip breakdown, minimum & living wage
• Mortgage & Property — repayments, affordability, Stamp Duty (SDLT), overpayments, remortgage
• Pensions & Retirement — contributions, tax relief, drawdown, State Pension
• Loans & Debt — personal loans, APR, credit-card payoff, car finance
• Business & Self-Employed — VAT, invoices, profit, IR35, contractor vs employee
• Savings & Investment — compound interest, ISA, savings goals
• Benefits & Welfare — Universal Credit, Child Benefit, statutory pay
• Motoring — fuel cost, mileage, EV charging, road tax (VED)
• Health & Fitness — BMI, BMR, calories, body fat
WHY CALKS.UK
• Works 100% offline — use it on the train, abroad, anywhere
• Private — every calculation runs in the app; nothing is sent to a server
• No ads, no account, no nonsense
• Always current — rates update automatically, over the air
• Clear, step-by-step results with plain-English explanations and FAQs
• Light & dark mode
Whether you're an employee checking your take-home pay, a freelancer working out VAT and IR35, a homebuyer estimating Stamp Duty, a saver planning ahead, or you just need a quick, accurate answer — Calks.UK has a calculator for it.
Free. Offline. Private. Try it today.
Calculations are estimates for general guidance and are not financial advice. For decisions, check gov.uk or a qualified adviser.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
NEW:
• 4 new calculators — Winter Fuel Payment (2026/27 £35,000 income test), Pro-Rata Salary (part-time & term-time), Pension Emergency Tax and Tax Refund
• Search from any page — tap the magnifier in the header
• Share a link to your exact calculation from the top money calculators
• Take-home pay upgraded: Scottish rates, bonuses, salary sacrifice and a reverse "required salary" mode
• "Rates verified" badge shows when every figure was last checked against GOV.UK
The developer, Konstantin Iakovlev, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Used to Track You
The following data may be used to track you across apps and websites owned by other companies:
- Identifiers
- Usage Data
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Identifiers
- Usage Data
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Konstantin Iakovlev
- Size
- 44.5 MB
- Category
- Finance
- Compatibility
Requires iOS 15.0 or later.
- iPhone
Requires iOS 15.0 or later. - iPad
Requires iPadOS 15.0 or later. - iPod touch
Requires iOS 15.0 or later. - Mac
Requires macOS 12.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Contains
Advertising
- Copyright
- © 2026 Konstantin Iakovlev