From scientific calculations to income tax, mortgages to inheritance — 25 professional tools with live results. No account. No cost.
Every number updates instantly as you type or move sliders. You see the impact of every change in real time.
Visual breakdowns, bar charts, line graphs, and full month-by-month repayment schedules on key tools.
PAYE, Class 4 NI, SDLT, LISA bonuses, marginal relief — every tool uses precise UK 2024/25 tax law, not generic figures.
All calculations run locally in your browser. No servers, no accounts, no tracking, no adverts.
25 calculators across savings, tax, borrowing, investments, and business — organised and instantly accessible from the sidebar.
Clean inputs and interactive sliders. Results update the moment you type — no button to press, no waiting.
Detailed breakdowns, charts, and schedules. Copy results to clipboard or print as PDF in one click.
25 tools. No account. No cost.
Open All 25 Calculators →CalcTool calculators are for illustrative and informational purposes only. Results do not constitute financial, tax, or legal advice. Tax rates are based on 2024/25 HMRC figures for England. Always consult a qualified adviser for your specific situation.