TriCalc

TriCalc... The perfect calculator for triathletes, cyclists, runners, and swimmers. TriCalc (formerly named PaceCalc) lets you easily calculate time, distance, and pace/speed before or after your workouts & races, for running, biking or swimming. Features:

• Solves for time, distance, or pace. •Enter numbers with dials or a keyboard.
• Live recalculating - change any of the inputs and the result is instantly displayed. Great for playing with paces to see what your final projected times might be.
• Supports miles or kilometers (for running & biking) and yards or meters (for swimming), with automatic conversion between units.
• One-touch pre-set distances for easy and accurate calculations on common races (5K, 10K, Olympic, Half Iron, Ironman, etc).