Calculators
Compare prices, convert units, count calendar or working days, and plan image dimensions with clear formulas and local result exports.
Practical calculators for everyday decisions
10 free calculators for prices, dates, time and dimensions. Review formulas and assumptions, then copy or export your result locally.
Prices & percentages
Dates & work time
Units & dimensions
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10 tools found
Percentage Calculator
Calculate percentages, percentage change and original values with a visible formula.
Open tool →Browser-basedDiscount & Tax Calculator
Apply two successive discounts and an optional tax rate, with a transparent price breakdown.
Open tool →Browser-basedUnit Price Comparison
Compare two packs by price per common unit, including mixed mass or volume units.
Open tool →Browser-basedUnit Converter
Convert length, mass, volume, temperature and speed using named, compatible units.
Open tool →Browser-basedDate Difference Calculator
Count calendar days and complete weeks between dates, with an explicit end-date option.
Open tool →Browser-basedWorking Days Calculator
Count working days using your weekend pattern and a custom list of holiday dates.
Open tool →Browser-basedWork Hours Calculator
Add work durations and subtract an unpaid break, with decimal hours for timesheets.
Open tool →Browser-basedAspect Ratio Calculator
Reduce an image ratio and calculate proportional height or width for a target dimension.
Open tool →Browser-basedDate Add & Subtract Calculator
Add or subtract calendar days, weeks, months or years, with explicit month-end handling.
Open tool →Browser-basedData Transfer Time Calculator
Estimate file transfer duration using decimal or binary sizes, connection speed and usable bandwidth.
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