Disclaimer
Last updated
The calculators on this site are educational tools. They apply published formulas to the numbers you enter. They do not know your circumstances, and no result here is a substitute for advice from someone qualified to give it.
Financial calculators
Loan, investment, retirement and tax calculators model a formula, not a product. A real loan carries processing fees, insurance requirements, prepayment penalties and terms that vary by lender and jurisdiction — none of which this site can know. Investment projections assume a fixed return that markets do not deliver; they describe a scenario, not an expectation.
Nothing on this site is financial, investment, tax or legal advice, and we are not licensed to give it. Speak to a regulated adviser before committing to a loan, an investment or a retirement plan.
Health and fitness calculators
BMI, body fat, calorie, pregnancy and heart-rate tools apply formulas derived from population averages. They can be substantially wrong for any given individual — an athlete's BMI, a tape-measure body fat estimate, a due date calculated from an irregular cycle. They cannot detect a condition, and a normal-looking result is not a clean bill of health.
Nothing here is medical advice, diagnosis or treatment. Consult a qualified clinician before changing your diet, exercise or medication, and seek professional care for any health concern. If you may be experiencing a medical emergency, contact emergency services rather than a website.
Construction and engineering estimates
Material quantities for paint, tiles, concrete and brickwork are indicative and use nominal mixes and standard component sizes. Real sites differ in ways these figures cannot capture. Structural work must follow a qualified engineer's specification, not a general-purpose calculator.
Accuracy and errors
The calculation engines are covered by automated tests and verified against published formulas, and the same engines power our Android app so results agree across both. Despite that, errors are possible, and we make no warranty that every result is correct. Verify anything consequential independently, and please report anything that looks wrong.
External links and advertising
Advertisements and external links are not endorsements. We do not control third-party content and accept no responsibility for products or services advertised or linked here.