Tools
Working tools for real decisions
Sixteen calculators that turn what you know into a call you can trust. They run on this device and prefill from your boat where it helps.
Trip
- Speed / Distance / TimeSolve any one of speed, distance or time from the other two.
- Fuel RangeEstimate cruising range from fuel aboard, burn rate and speed.
- Trip FuelEstimate fuel needed for a planned distance at a given speed.
- Trip CostEstimate fuel cost for a trip, plus any extra costs you add.
- Fuel Economy ConverterConvert between marine and road fuel-economy units.
Performance
Electrical
- Battery Usable CapacityUsable amp-hours from bank size and depth of discharge.
- DC Load / Amp-Hour BudgetAdd your daily loads to size a day's amp-hour draw.
- Battery RuntimeHow long a usable bank lasts under a steady load.
- Charging-Time EstimatorEstimate time to replace an amp-hour deficit.
- Voltage DropVoltage lost over a DC cable run, there and back.