Unit converters
546 unit converters: length, weight, temperature, volume, speed, pressure, energy, data and cooking measures. Type a value, pick the units and get an exact result with the conversion factor shown, free in your browser.
Angstrom to nm converter
5,890 Å, the sodium line from flame tests, is 589 nm. This converter divides any wavelength in angstroms by exactly 10, so older spectroscopy tables line up…
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Ares to hectares converter
100 ares make exactly one hectare, so a 50-are garden is half a hectare. This converter divides by 100 and turns areas from cadastral plans, rural deeds and…
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Astronomical unit converter
One astronomical unit, the Earth–Sun yardstick, is exactly 149,597,870.7 km. Convert between AU, kilometres and international miles with the exact length fixed…
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ATM to pascals conversion
One standard atmosphere is exactly 101,325 pascals, so this converter multiplies your reading by that figure instead of a rough 100,000, turning textbook and…
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Bar to psig converter
10 bar absolute is 130.341788954696 psig. This converter scales bar to psi with the exact factor, then subtracts one standard atmosphere, so your number matches…
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Billion to trillion converter
1,000 billion is one trillion, so this converter divides any figure in billions by exactly 1,000: 80 billion becomes 0.08 trillion.
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Binary converter
42 in binary is 101010, and 101010 turns back into 42: one converter for whole numbers in both directions, with the bit count and a visible minus sign for…
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Binary to octal converter
1010 in binary is 12 in octal: the converter groups your bits in threes from the right, turns each group into a digit from 0 to 7 and reports the bit count.
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Byte converter
5 MB is 5000 KB: convert sizes between bytes, kilobytes, megabytes, gigabytes and terabytes using decimal steps of one thousand, and see the size in bytes…
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CC to grams converter
250 cc of water weighs 250 grams, because its density is about 1 g/cm³. Enter any volume in cc and the density of the substance to get its mass in grams, with…
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CC to ml converter
250 cc is exactly 250 ml, because a cubic centimetre and a millilitre are the same volume. Turn the cc marks on a syringe, a pipette or an engine plate into…
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CC to oz converter
One US fluid ounce is exactly 29.5735295625 cc, so a syringe reading or a lab volume in cc becomes the ounce figure on an American bottle or recipe card…
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CCF to therms converter
100 CCF of natural gas is 103.7 therms, using the conventional 1037 Btu per cubic foot. Turn the volume on a gas meter or bill into therms of energy for a bill…
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Centigrade to Celsius converter
25 degrees centigrade is 25 degrees Celsius: the two names describe the same scale, so the number never changes.
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Centimeter converter
2.54 centimetres is exactly one inch and 30.48 centimetres one foot. Convert any length between centimetres, inches, feet, metres and millimetres with those…
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Cents to euros converter
199 cents are 1.99 euros: the tool divides by exactly 100, the legal split of the euro, and shows the amount with two decimals as on a receipt.
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CGS system of units converter
1.5 metres is 150 centimetres in the CGS system. Choose length, mass or time, enter the SI value and read the figure in centimetres, grams or seconds with its…
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CM height conversion
180 cm is 5 feet and about 10.87 inches. Enter a height in centimetres and get it the way US and UK forms ask for it, whole feet plus leftover inches, using the…
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CM to in converter
254 cm is exactly 100 inches: the converter divides by 2.54, the inch fixed in 1959, so product labels, sewing patterns and screen diagonals match engineering…
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CM to km converter
100,000 cm make exactly 1 km, because centi is a hundredth of a meter and kilo a thousand meters. The converter divides by that factor, so a slipped decimal…
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CM to mm conversion
1 cm is exactly 10 mm, so 3.7 cm become 37 mm: the converter multiplies by ten and never misplaces the decimal point that wrecks a drawing or a dress pattern.
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Conversion calculator
2.54 cm is exactly 1 inch: convert length, mass, volume, time, area and energy within one kind at a time, using fixed published factors such as the 1959 inch…
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CPS converter
100 characters per second equal 100 B/s, 800 bit/s and 800 baud: enter a CPS rate from a serial datasheet, teleprinter table or networking homework and get all…
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Crore to million converter
2.5 crore are 25 million: switch a figure between the Indian crore and the international million with the exact factor of 10, in either direction, so a…
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Cubic feet converter
One cubic foot is exactly 1,728 cubic inches: enter a volume in cubic feet and get cubic inches, cubic meters, liters and US gallons together, so crates, ducts…
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Cubic feet to cubic meters converter
1 cubic foot is exactly 0.028316846592 cubic meters: turn imperial volumes from US HVAC plates, crate notes and take-offs into the metric figure used on tank…
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Cubic inches to gallons converter
231 cubic inches make exactly one US gallon: divide any volume in cubic inches by 231 to get US liquid gallons for engine, mold-cavity, aquarium and packaging…
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Cubic meter to ton converter
1 m³ of water at 1,000 kg/m³ weighs 1 metric ton: multiply a tank, silo or stockpile volume by the material density and divide by 1,000 to get tons, with the…
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Cubic yards to tons converter
10 cubic yards of gravel at 1.4 tons per yard weigh 14 US short tons, or 28,000 pounds: multiply a measured bed or load by the supplier's bulk density to see…
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Cups to oz converter
1 US cup is exactly 8 fluid ounces: convert recipe and meal-prep cups into the fluid ounces printed on beverage labels, measuring cups and nutrition logs, with…
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Cups to pints converter
2 US cups make exactly 1 pint: divide any cup measure by 2 to read it as US liquid pints, the unit on milk cartons, ice-cream tubs and beverage labels, while…
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Cups to quarts converter
4 US cups make exactly 1 quart: divide the cups from a recipe card or measuring cup by 4 to get the quarts printed on milk jugs, soup stocks and restaurant…
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Days to months converter
30.44 days make one average month: turn a stay, project, treatment or contract counted in days into months for a quote or budget line, using the Gregorian mean…
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Days to years converter
365.25 days are exactly 1 average year: divide a day count by the Julian year, which already includes one leap day every four years, for timelines, grant…
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Decagram to gram converter
One decagram is exactly 10 grams, so 5 dag of cheese is 50 g. Type the mass in decagrams and get grams, with the decimal point moved one place to the right.
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Decimeter to meter converter
Ten decimetres make exactly one metre, so 25 dm is 2.5 m. Enter a length in decimetres and get metres by the exact divide-by-ten rule, ready for a lab write-up…
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Degrees minutes seconds
45.51° becomes 45° 30′ 36″: enter a decimal angle and get whole degrees, minutes and seconds on the sixty-to-one scale, plus a DMS string ready to paste.
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Degrees to minutes converter
One degree is exactly 60 arc minutes, so your decimal reading is multiplied by 60 and returned as a single total, not split into degrees, minutes and seconds.
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Dimensional analysis checker
A newton and kg·m/s² both reduce to M L T⁻², so they match. Type the units of each side of a formula and see whether their seven SI base exponents agree, to…
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Dimes to dollars converter
Ten dimes make one dollar, so 7 dimes are 0.70 dollars. Enter a count of US dimes and get the face value in dollars and cents, for money-math homework, till…
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Decimeter conversion
One decimetre is 0.1 m, 10 cm and 100 mm, shown together. Enter a length in decimetres and get all three metric lengths at once, exact SI values with no inch…
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Celsius to Fahrenheit converter
Turn a Celsius reading into Fahrenheit with the exact formula: 0 °C is 32 °F and 100 °C is 212 °F, with no double-and-add-30 shortcut pulling your result off.
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Feet and inches
Split a length in inches into whole feet plus leftover inches, so 74 inches becomes 6 ft 2 in, written 6′ 2″ on drawings.
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Feet converter
Enter a length in feet and get it in inches, yards, meters and centimeters at once: 1 ft is 12 in, 0.3048 m and 30.48 cm, all exact factors.
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Fluid ounces to pounds converter
Find out what a volume of water weighs: 16 US fluid ounces, one pint, come to about 1.043 lb, a little more than the old pint-is-a-pound rhyme says.
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Foot to centimeter converter
Get the exact centimeter value of a length in feet, so 1 ft becomes 30.48 cm and 6 ft becomes 182.88 cm, never the rounded 30 or a survey-foot variant.
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Grams to ounces converter
Turn a metric mass into US ounces with the exact definition: 100 g is 3.527396194958 oz, because one ounce is exactly 28.349523125 grams.
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Gaj to square yard converter
A 200 gaj plot is exactly 200 square yards, because one gaj of area is one square yard in South Asian real estate.
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Gallon to tons converter
Find the mass of a tank of water: one US gallon of water weighs 3.785411784 kg, which is 0.003785411784 metric tons, using the exact gallon and a density of 1…
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Gallons to cubic feet converter
Turn US gallons into cubic feet with the exact definition: 1 gallon is 0.133680555556 ft³, because a gallon holds 231 cubic inches and a cubic foot 1728.
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Gallons to pints converter
A US liquid gallon holds exactly 8 pints, so 2.5 gallons are 20 pints and one eighth of a gallon is a single pint.
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Gallons to pounds converter
One US gallon of water weighs about 8.345 pounds, not the round 8 of the old rule of thumb, and 5 gallons come to about 41.727 pounds.
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Gematria calculator
Type an English word and get its ordinal letter sum: love scores 54, from L 12, O 15, V 22 and E 5, with each letter shown.
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Gr to ml converter
250 grams of water fill 250 milliliters, because water sits close to 1 gram per milliliter. For honey, oil or alcohol you enter the density and the volume…
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Grains to teaspoons converter
Sixty grains of an ingredient that packs 15 to the teaspoon make 4 teaspoons, which is 20 ml. You supply the grains-per-teaspoon count for your own spoon and…
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Grams in ml converter
Divide grams by density and you have milliliters: 91 g of olive oil at 0.91 g/ml fill 100 ml. You always enter the density, so honey, alcohol or resin is never…
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Grams to fl oz converter
One US fluid ounce of water weighs 29.5735295625 grams, so the tool divides your gram reading by that figure and also shows the milliliters.
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Greek gematria calculator
Type a Greek word and get its isopsephy total: λόγος scores 373, from λ 30, ο 70, γ 3, ο 70 and ς 200.
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Hardness conversion
A city report of 100 ppm hardness is 5.8479532164 grains per gallon on a US softener chart. Move one reading between ppm, mg/L, grains per gallon, German…
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Height in inches converter
Five feet eleven is 71 inches and six feet even is 72: the feet are multiplied by 12 and the remaining inches added.
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