Free, accurate calculators and financial education — built for real people making real decisions.
CalcAndGo exists to make accurate, easy-to-use calculation tools freely available to everyone — no sign-ups, no paywalls, no hidden fees. Whether you're figuring out your mortgage payment, checking your BMI, splitting a restaurant bill, or converting units for a home improvement project, we believe you should be able to get a fast, accurate answer without the frustration of cluttered websites or subscription requirements.
Beyond the tools themselves, we're committed to the education that helps people use them meaningfully. A mortgage calculator is only useful if you understand what an amortization schedule actually means. A BMI calculator is only helpful if you understand what BMI measures, what it doesn't, and what to do with that number. Our blog and guides exist to provide that context.
CalcAndGo currently provides free calculators and educational content across several categories:
Every calculator on CalcAndGo uses verified formulas drawn from established financial, medical, and scientific standards. Our mortgage calculator uses the standard amortization formula. Our BMI calculator uses the World Health Organization's guidelines. Our unit conversions use exact SI definitions.
Our educational content is written to be accurate, unbiased, and genuinely useful. We don't promote specific financial products, lenders, or investment platforms. We don't receive referral fees. Our guides present information and let you make your own informed decisions.
When we cover financial topics, we acknowledge that everyone's situation is different and that our content is educational — not personalized financial advice. For significant financial decisions, we always recommend consulting with a qualified financial advisor who knows your complete situation.
Finance, Health & Technology Writers
Our team brings together expertise in personal finance, health and wellness, mathematics, and web development. Our financial writers have backgrounds in accounting, financial planning, and consumer economics. Our health content is reviewed against current WHO and CDC guidelines. Our calculators are developed and tested by professionals with backgrounds in applied mathematics and software engineering.
We believe that access to accurate financial and health information shouldn't depend on whether you can afford a financial advisor or premium subscription. CalcAndGo is our contribution to leveling that playing field.
We take accuracy seriously. All calculator formulas are drawn from authoritative sources — the standard mortgage amortization formula used by lenders, the WHO BMI classification system, the Mifflin-St Jeor equation for BMR (the most validated formula for metabolic rate estimation), and verified unit conversion constants.
If you ever find an error in any of our calculators or content, please let us know through our Contact page. We review all reports promptly and update content as needed. Accuracy is non-negotiable for us — our users are making real decisions based on these numbers.
CalcAndGo is free to use and supported by display advertising through Google AdSense. We do not sell your data, require registration, or track your calculations. Calculations happen in your browser — your mortgage numbers, BMI results, and other personal data never leave your device.
We use cookies for advertising purposes in accordance with our Privacy Policy, which is written in plain English and explains exactly what data is collected and why.
Have a suggestion for a new calculator? Found an error? Want to share how CalcAndGo helped you? We'd love to hear from you. Visit our Contact page to reach us directly.