Marine & Boating

Tools for boaters — fuel consumption, anchoring, displacement, tides, engine maintenance, and boat financing.

Calculate fuel needed, trip time, cost, and range for your boat based on engine specs, speed, and distance.

Calculate the proper anchor line scope, chain length, and rope length based on water depth and conditions.

Estimate your boat's displacement, waterline area, and theoretical hull speed from hull dimensions and type.

Estimate the current tide height using the Rule of Twelfths, plus time to next high and low tide.

Track engine service intervals, estimate time until next maintenance, and assess maintenance urgency.

Calculate monthly payments, total interest, and total cost for financing a boat purchase.