Calculators that just work
CalcUnlimited is a collection of free, fast calculators built around three everyday categories: finance, health, and time & date. Every tool runs entirely in your browser — there's no signup, no account, and nothing to install. Enter your numbers and get an answer instantly.
Finance calculators
Plan a mortgage, project compound growth on savings or investments, split a restaurant bill, work out percentages, or see how long it'll take to pay off a credit card. These tools use the same formulas lenders and financial planners rely on, explained in plain language alongside the results.
Health calculators
Calculate your BMI and an estimated body fat percentage, or work out your daily calorie needs (TDEE) and a macro breakdown for losing weight, maintaining, or building muscle — based on widely used formulas like Mifflin-St Jeor.
Time & date calculators
Find the difference between two dates, calculate an exact age, convert times across time zones with daylight saving handled automatically, count down to an event, count business days for a deadline, or total up a weekly time card.