Financial calculators
built for local rules.
Calcfully publishes focused tools for tax, housing, borrowing, savings, retirement and business in the UK, Australia, mainland China, the United States and Canada. Every collection applies its own rules, official sources, review dates and limitations, so each estimate reflects the system that actually applies to your location.
Choose your country
Each collection is written in its local languages and follows the relevant national or provincial rules.
Browse by task
The same six task groups are used in every country collection, but the actual tools differ by local rules.
Tax and income
- United Kingdom
- Australia
- China mainland
- United States
- Canada
Housing and property
- United Kingdom
- Australia
- China mainland
- United States
- Canada
Loans and debt
- United Kingdom
- Australia
- China mainland
- United States
- Canada
Savings and investment
- United Kingdom
- Australia
- China mainland
- United States
- Canada
Retirement
- United Kingdom
- Australia
- China mainland
- United States
- Canada
Business and purchases
- United Kingdom
- Australia
- China mainland
- United States
- Canada
Why Calcfully is different
- Built for the rules where you live. Each country has its own tax, property and benefits system, and each tool applies the rules that govern the decision you are making — so the estimate matches what applies to you.
- Formulas and sources on every page. Rule-based figures link to the official publication they were checked against, with the date of review.
- Defaults you can see and override. Reference rates identify their source period and stay editable, so you can replace any number with a quote, contract or assessment you already hold.
- Runs entirely in your browser. Your inputs stay on your device, and the result is yours alone.
- Editorial answers your question; advertising sits apart. The calculator, the explanation and any ad on the page occupy their own space.
Important: All figures are educational estimates, not financial, tax, credit or investment advice. Before making a decision, confirm figures with the official source, a quote, a notice of assessment or a qualified professional where you live.