Extension that allows you to convert IConvertible by generic

ConvertibleExtension.cs

public static T To<T>(this IConvertible convertible)
    where T : IConvertible
{
    if (convertible is null)
        return default;
    var convertMethod = typeof(IConvertible).GetMethod($"To{typeof(T).Name}");
    if (convertMethod is null)
        throw new ArgumentException($"{convertible.GetType().Name} can't be converted to {typeof(T).Name}");
    var value = convertMethod.Invoke(convertible, new object[] { null });
    return (T)value;
}