Fahrenheit Degree Symbol (°F): Complete Guide

No, there should be no space between the degree symbol and F. The correct format is °F, not ° F. This follows international standards for temperature notation and ensures consistency with Celsius notation (°C).

Both are technically correct, but °F (two characters: degree symbol + F) is more commonly used and widely supported across all platforms. The single character ℉ (U+2109) exists but may not display correctly in all fonts and systems.

The US continues to use Fahrenheit due to historical reasons, cultural familiarity, and the high cost of converting infrastructure. While there have been efforts to metricate, Fahrenheit remains deeply embedded in American daily life for weather, cooking, and temperature references.

For quick mental conversion: subtract 30 from the Fahrenheit temperature and divide by 2. This gives a close approximation. For example: 80°F → (80-30)/2 = 25°C (actual is 26.7°C). For exact conversion, use: °C = (°F - 32) × 5/9.

Besides the United States, Fahrenheit is still used in a few other places including the Bahamas, Belize, the Cayman Islands, Palau, and US territories like Puerto Rico, Guam, and American Samoa. However, even in some of these places, Celsius is also commonly used alongside Fahrenheit.

While 98.6°F (37°C) is widely cited as normal body temperature, recent studies suggest the average is actually slightly lower, around 97.8-98.2°F. The 98.6°F standard comes from a study by German physician Carl Wunderlich in the 19th century. Normal body temperature can vary by person, time of day, and other factors.

The appropriate precision depends on the context: weather forecasts typically use whole numbers, medical measurements often use one decimal place (98.6°F), and scientific applications may require more precision. For most everyday purposes, one decimal place is sufficient for Fahrenheit measurements.