Calc: Mortgage, BMI, Tip & 175

Calculators is a fast, private collection of 175+ calculators that work fully offline on your Android phones and tablets. No tracking. No sign-up. Open it, get your answer, move on.

FINANCE
• Mortgage — full payment breakdown (principal, interest, taxes, insurance, PMI, HOA), amortization schedule, and a payoff chart
• Loan, refinance, compound and simple interest, sales tax, credit-card payoff, 401(k), Roth IRA, CD

HEALTH
• BMI, body fat, lean body mass, calorie needs and TDEE, ovulation, gestational age

EVERYDAY
• Tip, discount, percentage, and the basic calculator you reach for all day

CONVERTERS
• Length, temperature, volume, pressure, frequency, cooking, shoe and paper sizes

DATE & TIME
• Age, date difference, business days, add or subtract days, time duration

CONSTRUCTION
• Flooring, drywall, concrete, carpet, topsoil, gutters, and other project estimators

BUILT FOR SPEED AND PRIVACY
• 100% offline — every calculation runs on your device
• No accounts or analytics; your numbers never leave your device