Converting fresh chilli pepper to ground? If I normally use a fresh chilli pepper but decide to use the ground version, how do I convert for measuring the amount of ground? For example, 1 fresh pepper = 1 heaped teaspoon ground pepper.
Fresh pepper/chili and ground pepper/chili are not particularly interchangeable. 

For example: (sweet) paprika is essentially ground Bell pepper, but it is not a normal substitution to use replace Bell pepper with x teaspoons of paprika. 

Additionally, peppers range in size substantially. A Thai Birdseye chili would only yield a fraction of a teaspoon when dried and ground. A bell pepper is probably more likely to yield a tablespoon or more, depending on the drying process.