Calculators

Quick math, dates, and unit conversions.

Percentages, unit conversions, dates, and BMI calculations are the math we reach for constantly — and the easiest to botch under pressure. These calculators return instant results as you type, handle awkward edge cases like binary vs decimal file sizes and Bikram Sambat dates, and run entirely on your device.

10 free tools · processed in your browser

Percentage Calculator

Calculate percentages, percentage change, and proportions with instant results for any values.

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Tip Calculator

Calculate tips and split bills. Choose tip percentage, split between people, and see per-person totals.

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BMI Calculator

Calculate your Body Mass Index from height and weight. See the WHO category and healthy weight range.

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Age Calculator

Calculate exact age in years, months, days, and hours from any date of birth up to today.

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Date Difference Calculator

Find the exact difference between two dates in days, weeks, months, and years — with a calendar picker.

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Unit Converter

Convert between length, weight, temperature, volume, speed, and data units. 100+ unit pairs instantly.

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File Size Converter

Convert between bytes, KB, MB, GB, and TB. Decimal and binary units (MB vs MiB) both supported.

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Number to Words Converter

Convert numbers into written English words — perfect for checks, invoices, and formal documents.

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Nepali Date Converter

Convert dates between the Nepali (Bikram Sambat) and English (Gregorian) calendars with full accuracy.

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Nepali Unicode Converter

Convert Nepali text typed in Preeti or Kantipur fonts into Unicode (Romanized or direct font conversion).

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FAQ

Calculators — frequently asked questions

What unit categories are covered?

Length, weight, temperature, volume, area, speed, time, and digital storage, with 100+ unit pairs and both decimal (MB) and binary (MiB) file sizes.

Does the Nepali date converter work offline?

Yes. The conversion table is bundled, so Bikram Sambat to Gregorian conversion works with full accuracy and no network access.

Do calculations update live?

Yes. Every calculator recomputes as you type — there is no submit button and nothing is sent anywhere.