To convert degrees Fahrenheit (°F) to degrees Celsius (°C), you can use the following formula:

°C = (°F - 32) × 5/9

So, to convert 113°F to °C:

°C = (113°F - 32) × 5/9

°C = (81°F) × 5/9

°C = 45°C

Therefore, 113 degrees Fahrenheit is equal to 45 degrees Celsius.