Watersports Calculators — Sports
Paddling and rowing performance: kayak load and drag power curves, paddle cadence, rowing drag factor, rowing calories on the erg and on water, and kiteboarding sizing. Drag factor is the one that makes erg scores comparable between machines.
All Watersports Calculators
Calculate kayak drag power curve with inputs, formulas, and instant results.
Calculate kayak load with inputs, formulas, and instant results.
Calculate kiteboarding with inputs, formulas, and instant results.
Calculate paddle cadence with inputs, formulas, and instant results.
Calculate rowing calories with inputs, formulas, and instant results.
Calculate rowing drag factor with inputs, formulas, and instant results.
Calculate rowing split time with inputs, formulas, and instant results.
Calculate sailing vmg with inputs, formulas, and instant results.
Calculate scuba tank duration with inputs, formulas, and instant results.
Calculate scuba weight with inputs, formulas, and instant results.
Calculate sup speed vs effort with inputs, formulas, and instant results.
Calculate surf wave height with inputs, formulas, and instant results.
Calculate swim time converter with inputs, formulas, and instant results.
Calculate underwater visibility index with inputs, formulas, and instant results.
Calculate windsurfing with inputs, formulas, and instant results.
About Watersports Calculators
Paddling and rowing performance: kayak load and drag power curves, paddle cadence, rowing drag factor, rowing calories on the erg and on water, and kiteboarding sizing. Drag factor is the one that makes erg scores comparable between machines.
Whether you need to solve a one-time problem or verify your own calculations, these free tools cover the most common watersports scenarios. All results are computed in your browser — no data is sent to any server.
What You Can Calculate
This section includes 15 tools: Kayak Drag Power Curve Calculator, Kayak Load Calculator, Kiteboarding Calculator, Paddle Cadence Calculator, Rowing Calories Calculator — Erg & On-Water, Rowing Drag Factor Calculator, Rowing Split Time Calculator, Sailing VMG Calculator, and 7 more. Each calculator is free to use with no signup required.