Conversions & Units
259 free conversions & units tools in the Calculators & Converters collection — every one runs in your browser with no signup and no uploads. Page 3 of 3.
Mbps to MB/s Converter
Convert internet speed in megabits to file transfer in megabytes per second.
Gbps to Mbps Converter
Convert gigabit per second link speeds to megabits per second.
Alcohol Units Calculator
UK units and US standard drinks from volume and ABV.
Rectangle Calculator
Area, perimeter and diagonal of a rectangle.
Sample Rate Converter
Find the resampling ratio between two audio sample rates.
Frame Rate Converter
Convert between video frame rates and frame counts.
Weeks to Days Converter
Convert weeks to days (and back) instantly.
Days to Hours Converter
Convert days to hours (and back) instantly.
Hours to Minutes Converter
Convert hours to minutes (and back) instantly.
Minutes to Seconds Converter
Convert minutes to seconds (and back) instantly.
Years to Months Converter
Convert years to months (and back) instantly.
Months to Weeks Converter
Convert months to weeks (and back) using the average month.
Kelvin to Fahrenheit Converter
Convert Kelvin to Fahrenheit and back.
Square Feet to Acres Converter
Convert square feet to acres and back.
Cups to Grams Rice Converter
Convert cups of rice to grams instantly — by rice type. Free, browser-only.
Tablespoons to Cups Converter
Convert tbsp to cups instantly — 1 cup = 16 tbsp. Free, browser-only tool.
US Quarts to Litres Converter
Convert qt to L instantly — 1 qt = 0.946352946 L. Free, browser-only tool.
US Pints to Millilitres Converter
Convert pt to mL instantly — 1 pt = 473.176473 mL. Free, browser-only tool.
US Gallons to Cups Converter
Convert gal to cups instantly — 1 gallon = 16 cups. Free, browser-only tool.
Fluid Ounces to Millilitres Converter
Convert fl oz to mL instantly — 1 fl oz = 29.5735 mL. Free, browser-only tool.
Water Intake by Body Weight Calculator
How much water to drink based on your weight.
Air Fryer Conversion Calculator
Convert any oven recipe to air fryer temperature and time.
International Shoe Size Converter
Convert shoe sizes between US, UK, EU and centimetres.
Milligrams to Grams Converter
Convert mg to g instantly — 1 g = 1000 mg. Free, browser-only tool.
Micrograms to Milligrams Converter
Convert µg to mg instantly — 1 mg = 1000 µg. Free, browser-only tool.
Centimeters to Meters Converter
Convert cm to m instantly — 1 m = 100 cm. Free, browser-only tool.
Kilometers to Meters Converter
Convert km to m instantly — 1 km = 1000 m. Free, browser-only tool.
Millimeters to Centimeters Converter
Convert mm to cm instantly — 1 cm = 10 mm. Free, browser-only tool.
Knots to MPH Converter
Convert knots to miles per hour, both directions.
Weekly Meal Planner and Shopping List
Plan a week of meals and auto-build a combined shopping list.
Unit Price Comparator
Compare products by price per kg, litre or item to find the best value.
PPI Calculator
Turn resolution and screen size into pixels-per-inch, dot pitch and a retina check.
Fuel Economy Converter
Convert MPG (US/UK), L/100km and km/L instantly, with a cost estimate.
Weighted Random Picker
Pick winners with custom odds — weighted, cryptographically fair, with live stats.
Power Converter
Convert watts, kilowatts, megawatts, horsepower, BTU/h and ft·lb/s.
Area Converter
Convert between mm², cm², m², hectares, km², acres, square feet and more.
Angle Converter
Convert between degrees, radians, gradians, turns, arcminutes and arcseconds.
Data Storage Converter
Convert bits, bytes, KB, MB, GB, TB and PB in decimal (1000) or binary (1024) mode.
Energy Converter
Convert joules, calories, watt-hours, BTU, foot-pounds and electronvolts.
Frequency Converter
Convert Hz, kHz, MHz, GHz, RPM and period (seconds) — type any field, the rest update live.
Length Converter
Convert between mm, cm, m, km, inches, feet, yards, miles and more — live.
Pressure Converter
Convert between Pa, kPa, bar, psi, atm, mmHg, torr and inHg instantly.
Speed Converter
Convert between m/s, km/h, mph, knots, ft/s and Mach instantly.
Temperature Converter
Convert Celsius, Fahrenheit, Kelvin and Rankine with exact formulas.
Time Unit Converter
Convert between nanoseconds, seconds, hours, days, weeks, months and years.
Torque Converter
Convert torque between N·m, kgf·m, lbf·ft, lbf·in and dyn·cm.
Volume Converter
Convert ml, litres, cubic metres, teaspoons, cups, pints, quarts and gallons (US and UK).
Weight & Mass Converter
Convert milligrams, grams, kilograms, tonnes, ounces, pounds, stones and tons in one live grid.
Wavelength & Frequency Calculator
Convert wavelength, frequency and photon energy in any direction.
Julian Date Converter
Convert Gregorian dates to Julian Dates (JD, JDN, MJD) and back — instantly in your browser.
Celsius to Fahrenheit Converter
Instantly convert between °C, °F, Kelvin, Rankine and Réaumur — with formulas shown.
Kg to Pounds Converter
Instantly convert kilograms to pounds (and stones + pounds) — or reverse.
Fahrenheit to Celsius Converter
Instantly convert any temperature between °F and Celsius — with full working shown.
Grams to Ounces Converter
Instantly convert grams to ounces (and back) with the exact NIST factor.
Ounces to Grams Converter
Convert oz to g instantly — 1 oz = 28.3495 g. Free, browser-only tool.
Pounds to Kilograms Converter
Instantly convert lb to kg — decimal or stone+lb entry, full conversion grid.
Stone to Pounds Converter
Convert st to lb instantly — 1 stone = 14 pounds exactly. Free, browser-only tool.
Pounds to Stone Converter
Convert pounds to stones and pounds — with kilograms too.
Time Zone Converter
Convert a date and time from one time zone to many others at once.