You can use these calculators to calculate average boat speed, chain locker volume, capsize factor, and more..
How Fast Is Your Boat? Calculates Approximate Average Boat Speed and Seconds per Mile Speed Differences
Anchor Chain Storage Calculator
What is the chain locker volume required for self-stowing chain?
This calculator determines the tensile strength needed by the bobstay for sailboats that have bowsprits.
Calculate the capsize factor for a sailboat.
Displacement Hull Speed Calculator
What is the maximum speed a displacement vessel attain under ordinary conditions?