Free calculators and converters for everyday questions
Pick a tool below. Each one shows its formula, so you can check the answer yourself. There is no account to create, and the calculations run in your browser.
Unit converterLength, weight, volume, speed and temperature.
Percentage calculatorPercent of a number, shares and changes.
Tip calculatorAdd a tip to a bill and split it between people.
Loan paymentMonthly payment, total cost and interest on a fixed-rate loan.
Compound interestSee how savings grow with monthly deposits.
Salary converterHourly, weekly, monthly and annual pay.
BMI calculatorBody mass index and the healthy weight range for your height.
Date differenceDays, months and exact age between two dates.
Word counterWords, characters, sentences and reading time.
Password generatorStrong random passwords, made in your browser.
Why use QuickCalc Hub
- The working is shown. Every calculator lists its formula and a worked example, so you can check the result.
- Private by design. Calculations run in your browser. The word counter and password generator never save what you type or generate.
- No account. Open a tool and use it. Favorites and recent results are optional and stored only if you allow it.
Results are estimates for general information. For medical, financial, tax or legal decisions, check with a qualified professional.