Want to get an idea of what you can run before the race to help pace properly? This calculator can predict a race time by using a time from another race. For example, if you run a 5k in preparation for a 1/2 Marathon, using this calculator you can within reason predict your 1/2 Marathon finishing time, helping you pace properly. Personally, this calculator has proved to be extremely accurate with the exception of the marathon.
Use this calculator to determine the paces at which to run up-pace runs or workouts (aka. intervals, repetitions, tempo runs)
This calculator is based on a formula that world famous exercise physiologist, Jack Daniels invented in which athletes can use recent race times to easily set training paces for specific workouts. Examples of these workouts are tempos, repetitions, intervals, easy runs and marathon paced runs. Jack called this the VDOT chart. You can read more about VDOT calculation by clicking here.
Use this to convert treadmill pace to outside pace.
Use this conversation table to convert treadmill pace to outside pace. Running on a treadmill is in fact easier then running outside. This is due to a two factors; since the ground is moving away from you less force is need to propel yourself forward and you aren't fighting wind resistance. Because of these factors the pace displayed on the treadmill would be a slower pace outside. TIP: Run at a 1% incline to more closely mimic outside running.