Product timeline. 1  1982 â Diet Coke is introduced, becoming the largest-selling low-calorie soft drink in America. 2  1983 â Diet Coke is introduced in the UK. 3  1986 â Diet Cherry Coke is introduced in American markets. 4  1994 â Diet Coke changes logo. 5  1999 â Diet Cherry Coke changes logo. 6  2001 â Diet Coke with Lemon is introduced.
21Â°C = 69.8Â°F. Use the formula F = 9/5C + 32. To convert from Celsius to Fahrenheit, multiply the number by 9, divide by 5, and add 32. In this instance, 21 x 9 = 189 / 5 = 37.8 + 32 = 69.8. Therefore, 21 degrees Celsius is equal to 69.8 degrees Fahrenheit.se the formula F = 9/5C + 32. To convert from Celsius to Fahrenheit, multiply the number by 9, divide by 5, and add 32.
How many degree Celsius in 1 degree Fahrenheit? The answer is 0.55555555555556. We assume you are converting between degree Celsius and degree Fahrenheit. You can view more details on each measurement unit: degree Celsius or degree Fahrenheit The SI base unit for temperature is the kelvin. 1 kelvin is equal to 1 degree Celsius, or 1.8 degree Fahrenheit. Note that rounding errors may occur, so always check the results. Use this page to learn how to convert between degrees Celsius and degrees Fahrenheit. Type in your own numbers in the form to convert the units! âºâº Want other units?