25 degrees Celsius is equivalent to 77 degrees Fahrenheit. The formula to convert Celsius to Fahrenheit is F = (C × 9/5) + 32, where F is the temperature in Fahrenheit and C is the temperature in Celsius. Using this formula, we can calculate that 25 degrees Celsius is equal to 77 degrees Fahrenheit as follows:

F = (25 × 9/5) + 32 F = 45 + 32 F = 77

Therefore, 25 degrees Celsius is equal to 77 degrees Fahrenheit.