About Calcuit
Calcuit is a free calculator website — Calcufrom Calculator + it — built so anyone can get quick, reliable numbers for everyday money and health decisions.
What we do
We publish focused online calculators: mortgage payments, BMI, daily calories, protein targets, investment growth, and more. Each tool uses established formulas and updates results live as you type — no sign-up, no downloads.
Our approach
- Free and open — every calculator is available without an account.
- Privacy first — your inputs stay in your browser; we do not store what you calculate. Privacy Policy
- Mobile-friendly — layouts work on phones, tablets, and desktops.
- Clear results — charts and summaries help you understand the numbers, not just the answer.
Important note
Calcuit calculators are for general information and education only. They are not medical, financial, or legal advice. Always consult a qualified professional for decisions that affect your health or finances.
Calculator categories
Financial
Plan mortgages, loans, investments, savings goals, and payoffs with free calculators. Each tool explains the formula assumptions, shows worked scenarios, and links to money guides.
16calculators →
Health
Estimate BMI, metabolism, calories, body fat, ideal weight, hydration, and heart rate zones. Clear wellness explainers so you understand what your numbers mean.
9calculators →
Everyday Math
Simple, fast calculators for standard arithmetic, percentages, dates, exact ages, and durations. Designed for quick answers on desktop and mobile with keyboard support.
5calculators →
Converters
Convert weight, length, area, volume, speed, currency, time, and temperature between common units with instant tables and clear conversion formulas.
9calculators →
Pregnancy & Cycle
Explore due dates, pregnancy timelines, ovulation, periods, and conception windows. Educational dating tools with clear limitations—always confirm prenatal care with your clinician.
5calculators →
Questions or feedback? Contact us.