The boiling point of water is about one hundred degrees celsius (100 °C) at a pressure of 1 atmosphere. The exact values depend on the water composition (usually the amount of salt) and the air pressure. Convert temperature units from Celsius scale to Fahrenheit scale. C to F. How to solve the equation °F = °C × 9/5 + 32. Learn how to convert among temperaure units Celsius to degrees Fahrenheit . According to Celsius to Fahrenheit Conversion formula if you want to convert 38 (thirty-eight) degrees Celsius (°C) to degrees Fahrenheit (°F) you have to multiply 38 by 9/5 (you can first multiply 38 by 9 and then divide the result by 5). See the steps to find the temperature of 38 degrees Celsius in degrees Fahrenheit below. To convert 38 °C to °F, you can use a widely accepted conversion formula: 38 °C × 9/5 + 32 = 100.4 °F . Thus, 38 degrees Celsius times 9 divided by 5 plus 32 is equal to 100.4 degrees Fahrenheit.