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61 results for “conversion”

Formulae (58)

Degrees to Radians

\text{rad} = \text{deg} \times \frac{\pi}{180}

Convert an angle from degrees to radians.

TrigonometryBasic

Radians to Degrees

\text{deg} = \text{rad} \times \frac{180}{\pi}

Convert an angle from radians to degrees.

Thermodynamics & HeatBasic

Celsius to Fahrenheit

F = \tfrac{9}{5}C + 32

Convert Celsius to Fahrenheit.

Thermodynamics & HeatBasic

Celsius to Kelvin

K = C + 273.15

Convert Celsius to Kelvin.

Health & FitnessBasic

Blood Glucose Conversion

\text{mmol/L} = \frac{\text{mg/dL}}{18}

Converts blood-sugar units between countries.

Nutrition & FoodBasic

Kilocalories to Kilojoules

kJ = kcal \times 4.184

Convert dietary Calories to the SI energy unit used on many food labels.

Business & CommerceIntermediate

Conversion Rate

CR = \dfrac{Conversions}{Visitors}\times 100\%

The share of visitors or leads that take the desired action.

Currency & ForexBasic

Currency Conversion

Foreign = Domestic \times Rate

Convert an amount from one currency to another using the quoted exchange rate.

Everyday MathBasic

Celsius to Fahrenheit

F = \frac{9}{5}C + 32

Convert temperature from Celsius to Fahrenheit.

Unit ConversionsBasic

Celsius to Fahrenheit

°F = °C \times \frac{9}{5} + 32

Convert a temperature from Celsius to Fahrenheit.

Unit ConversionsBasic

Fahrenheit to Celsius

°C = (°F - 32) \times \frac{5}{9}

Convert a temperature from Fahrenheit to Celsius.

Unit ConversionsBasic

Celsius to Kelvin

K = °C + 273.15

Convert Celsius to the absolute Kelvin scale.

Unit ConversionsBasic

Kelvin to Celsius

°C = K - 273.15

Convert Kelvin to Celsius.

Unit ConversionsBasic

Kilometers to Miles

\text{mi} = \text{km} \times 0.621371

Convert kilometers to miles.

Unit ConversionsBasic

Miles to Kilometers

\text{km} = \text{mi} \times 1.60934

Convert miles to kilometers.

Unit ConversionsBasic

Meters to Feet

\text{ft} = \text{m} \times 3.28084

Convert meters to feet.

Unit ConversionsBasic

Feet to Meters

\text{m} = \text{ft} \times 0.3048

Convert feet to meters.

Unit ConversionsBasic

Inches to Centimeters

\text{cm} = \text{in} \times 2.54

Convert inches to centimeters.

Unit ConversionsBasic

Nautical Miles to Kilometers

\text{km} = \text{nmi} \times 1.852

Convert nautical miles to kilometers.

Unit ConversionsBasic

Square Meters to Square Feet

\text{ft}^2 = \text{m}^2 \times 10.7639

Convert area from square meters to square feet.

Unit ConversionsBasic

Acres to Square Meters

\text{m}^2 = \text{acre} \times 4046.86

Convert acres to square meters.

Unit ConversionsBasic

Hectares to Acres

\text{acre} = \text{ha} \times 2.47105

Convert hectares to acres.

Unit ConversionsBasic

Square Km to Square Miles

\text{mi}^2 = \text{km}^2 \times 0.386102

Convert area from square kilometers to square miles.

Unit ConversionsBasic

Liters to US Gallons

\text{gal} = \text{L} \times 0.264172

Convert liters to US gallons.

Unit ConversionsBasic

US Gallons to Liters

\text{L} = \text{gal} \times 3.78541

Convert US gallons to liters.

Unit ConversionsBasic

Cubic Meters to Cubic Feet

\text{ft}^3 = \text{m}^3 \times 35.3147

Convert volume from cubic meters to cubic feet.

Unit ConversionsBasic

Milliliters to Fluid Ounces

\text{fl oz} = \text{mL} \times 0.033814

Convert milliliters to US fluid ounces.

Unit ConversionsBasic

Kilograms to Pounds

\text{lb} = \text{kg} \times 2.20462

Convert kilograms to pounds.

Unit ConversionsBasic

Pounds to Kilograms

\text{kg} = \text{lb} \times 0.453592

Convert pounds to kilograms.

Unit ConversionsBasic

Grams to Ounces

\text{oz} = \text{g} \times 0.035274

Convert grams to ounces.

Unit ConversionsBasic

Metric Tonnes to Pounds

\text{lb} = \text{t} \times 2204.62

Convert metric tonnes to pounds.

Unit ConversionsBasic

km/h to mph

\text{mph} = \text{km/h} \times 0.621371

Convert speed from km/h to mph.

Unit ConversionsBasic

m/s to km/h

\text{km/h} = \text{m/s} \times 3.6

Convert speed from meters per second to km/h.

Unit ConversionsBasic

Calories to Joules

\text{J} = \text{cal} \times 4.184

Convert calories to joules.

Unit ConversionsBasic

kWh to Joules

\text{J} = \text{kWh} \times 3.6\times10^6

Convert kilowatt-hours to joules.

Unit ConversionsBasic

Atmospheres to Pascals

\text{Pa} = \text{atm} \times 101325

Convert atmospheres to pascals.

Unit ConversionsBasic

Bar to PSI

\text{psi} = \text{bar} \times 14.5038

Convert bar to pounds per square inch.

Unit ConversionsBasic

Degrees to Radians

\text{rad} = \text{deg} \times \frac{\pi}{180}

Convert an angle from degrees to radians.

Unit ConversionsBasic

Radians to Degrees

\text{deg} = \text{rad} \times \frac{180}{\pi}

Convert an angle from radians to degrees.

Unit ConversionsBasic

Gigabytes to Megabytes

\text{MB} = \text{GB} \times 1024

Convert gigabytes to megabytes (binary).

Unit ConversionsBasic

Kilometers to Miles

\text{mi} = km \times 0.6214

Convert kilometers to miles.

Unit ConversionsBasic

Miles to Kilometers

km = mi \times 1.6093

Convert miles to kilometers.

Unit ConversionsBasic

Kilograms to Pounds

lb = kg \times 2.2046

Convert kilograms to pounds.

Unit ConversionsBasic

Pounds to Kilograms

kg = lb \times 0.4536

Convert pounds to kilograms.

Unit ConversionsBasic

Inches to Centimeters

cm = in \times 2.54

Convert inches to centimeters.

Unit ConversionsBasic

Liters to US Gallons

gal = L \times 0.2642

Convert liters to US gallons.

Unit ConversionsBasic

Celsius to Kelvin

K = C + 273.15

Convert Celsius to Kelvin.

Unit ConversionsBasic

MPH to KM/H

km/h = mph \times 1.6093

Convert miles per hour to kilometers per hour.

Unit ConversionsBasic

Calories to Joules

J = cal \times 4.184

Convert calories to joules.

Unit ConversionsBasic

Atmospheres to Pascals

Pa = atm \times 101325

Convert atmospheres to pascals.

Unit ConversionsBasic

Horsepower to Watts

W = hp \times 745.7

Convert horsepower to watts.

Unit ConversionsBasic

Bytes to Bits

bits = bytes \times 8

Convert bytes to bits.

Unit ConversionsBasic

Radians to Degrees

\deg = rad \times \frac{180}{\pi}

Convert radians to degrees.

Unit ConversionsBasic

Acres to Square Meters

m^2 = acre \times 4046.9

Convert acres to square meters.

Unit ConversionsBasic

Feet to Meters

m = ft \times 0.3048

Convert feet to meters.

Computer ScienceBasic

Binary to Decimal

N = \sum_{i=0}^{k} b_i 2^i

Converts a binary number to decimal.

Computer ScienceBasic

Decimal to Binary

N = \text{repeated division by } 2

Convert a decimal number to binary by dividing by 2 and reading remainders.

Computer ScienceBasic

Hexadecimal to Decimal

N = \sum_{i=0}^{k} h_i 16^i

Convert a hexadecimal number to decimal.

Math Tricks (3)

Common Fraction-Decimal Pairs

Memorize common fraction-to-decimal conversions for instant calculation.

View trick

Quick Celsius ↔ Fahrenheit

A fast approximation: to go C→F, double and add 30. For exact values use ×9/5 + 32.

View trick

Miles ↔ Kilometres Fast

Multiply miles by 1.6 for km, or divide km by 1.6 for miles. Consecutive Fibonacci numbers are handy approximations.

View trick