Tips & how it works

Press Add Calculator to place a new calculator in your workspace. Type on your keyboard or use the on-screen keys: digits, the four operators, parentheses, √ (square root), x² (square), % and ± (switch sign).

Every calculator can use the result of another calculator inside its own formula:

• Tap “Use result”, choose the calculator you want, and its current value is inserted into your expression;
• On desktop you can also drag a result chip straight onto another calculator;
• Drag & drop works on desktop only — on phone and tablet, always use the “Use result” button;
• When the source calculator changes, every calculator that uses its result recalculates automatically.

Give each calculator a clear name (tap the name field), move it left or right with the arrow buttons, and remove it with the trash icon. Keeping a logical order makes chains of linked results easier to follow.

The clock icon on a calculator opens its history: your previous expressions and results, so you can reuse or double-check earlier steps.

Percentages behave like on a classic calculator: right after + or −, entering a number followed by % adds or subtracts that percentage of the first number. So 200 + 10% = 220.

With other operators, % is simply treated as its own value (10% = 0.1).

Each calculator has a format selector: plain numbers, currency, or percentages. Amounts are grouped with thousands separators so large results stay readable.

The Use Templates menu lists ready-made calculator sets by category. At the top, Most popular shows the templates people open the most, followed by the categories in alphabetical order: Business (Profit Calculator, Add VAT Calculator, Remove VAT Calculator, Freelance Hourly Rate Calculator, Freelance Retainer Calculator and Job Quotation Calculator), Finance (Discount Calculation, Compound Interest Calculator and Wedding Budget Calculator), Fun & Trending (Age Calculator and Screen Time of Life Calculator), Health (BMI Calculator and TDEE & Calorie Deficit Calculator), Investments (Dividend Income Calculator and FIRE Calculator) and Real Estate (Mortgage Need). Adjust the numbers and the linked results update instantly.

A template is just a starting point — you can build your own "template" for anything you calculate often:

• Add one calculator per input (for example: hours worked, hourly rate);
• Add a calculator that links those inputs together into the result you need;
• Give every calculator a clear name so the chain stays readable;
• Save it as its own workspace — next time you only change the inputs and everything recalculates.

That way your own recurring calculation — a quote, a recipe scaling, a loan estimate — behaves exactly like a built-in template.

For the most-searched calculations, the How to Calculate guides walk you through mortgage need, percentage discounts and profit margin step by step — each with a one-click ready-made template.

Keep separate projects apart with workspaces: create one per topic, rename it, and switch between them from the Workspaces menu. Everything is saved automatically in this browser and stays on your device — see Privacy Policy.

The Share, Export This Workspace button sits right next to the workspace name and offers sharing and PDF export. Choose a sharing option to create and send a short link — something like linkedcalculator.com/w/your-name-a4f2 — that carries your whole setup: the workspace name, all calculators, their names, the numbers you typed, the links between them and the formatting (€, %).

• Send the link via WhatsApp, e-mail, X, LinkedIn or copy it with the Copy link button;
• The receiver opens it and gets an exact copy as a new workspace in their own browser — their existing workspaces stay untouched;
• It is a copy, not live collaboration: later changes on either side never affect the other person's workspace;
• No account is needed. To keep the link short, the workspace details are stored with the link itself so it always opens — sharing is the only thing that saves anything; everyday calculating stays entirely on your device;
• The Share button in the menu shares the website in general; the button next to the workspace name shares this specific calculation;
• Calculation history is not included in the link, which keeps it short — normal workspaces (up to about 20 calculators) produce a link that is easy to send.

Tip: Facebook and LinkedIn only accept a link — they fetch the title and description from the page themselves. WhatsApp, e-mail, X and copy-link carry your text plus the link.

Looking for a ready answer? The How to Calculate page walks you through the most-searched calculations step by step, with example numbers you can copy into your own workspace:

• Percentage discount — calculate a price with a percentage off;
• Profit and profit margin — from revenue and costs to what you actually earn;
• Mortgage planning — monthly payments and what a loan really costs.

Every guide ends with an Open this template button: one click and the full calculation is set up in a new workspace, ready for your own numbers.

Want to keep a budget, send a calculation with a quote or print your results? Export your linked calculations as a PDF with a clear overview of the inputs, formulas and final amounts.

• Give your workspace and calculators descriptive names — those names appear in the PDF alongside the calculator letters.
• Open the “Share, Export This Workspace” button next to the workspace name and select “Export as PDF”.
• In the browser’s print dialog, choose Save as PDF to save the document, or select a printer for a paper copy.
• The overview includes the workspace name, date, formulas and results. References show the linked calculator’s name and value, making each connected step easy to follow.
• A PDF keeps the values as they were when you exported. To let someone edit the inputs and recalculate, share the workspace link instead.