Paddlesports
Planning calculators for paddlesports — estimates from industry-style inputs.
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Canoe Trim Calculator
Calculate optimal canoe trim (fore/aft weight balance) from paddler weights, gear placement, and capacity for best tracking and handling.
Stand-Up Paddleboard Size Calculator
Find the right SUP board volume, length, and width based on your weight, skill level, and paddling style.
River Difficulty Rating Calculator
Estimate whitewater class (I-VI) from river gradient, flow rate, channel width, obstacle density, and water temperature.
Portage Distance Planner Calculator
Plan your portage carry with time, effort, and calorie estimates based on distance, weight, terrain, and fitness.
Kayak Spray Skirt Size Calculator
Find the right spray skirt size from your cockpit dimensions and waist measurement for a secure, comfortable fit.
Whitewater Flow Calculator
Evaluate river flow conditions for paddling suitability using flow rate, width, and depth to calculate velocity, Froude number, and feature suitability.
Paddling Calorie Calculator
Estimate calories burned kayaking, canoeing, or SUP paddling using MET values, body weight, duration, and stroke rate.
Kayak Fishing Setup Calculator
Calculate your kayak fishing gear weight budget, stability margin, and load distribution to stay safe and efficient on the water.
Dragon Boat Team Calculator
Optimize dragon boat crew balance and seating from paddler weights, calculate weight spread, power section targets, and stroke rate.
Canoe Material Comparison Calculator
Compare canoe hull materials (polyethylene, Kevlar, fiberglass, carbon, wood) on weight, cost, durability, and portageability.