Visual calculators
See the math.
Calculators for real projects, from aquariums to off-grid power. Every answer comes with a chart, a share link, and a formula tested against two published sources.
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- Aquarium & reefAquarium heater size calculatorHow many watts does your aquarium heater need? Enter tank size and room temperature to get a wattage range and a heater to buy.
- Aquarium & reefAquarium weight & stand load calculatorHow much does your filled fish tank weigh? Water, glass, substrate and rock, plus how much of your stand's rated capacity it uses.
Topics
- Aquarium & reefTank weight, heaters, volume, dosing and more.
- Pool, hot tub & pondComing soon
- Off-grid powerComing soon
- Economics StudioComing soon
- SurfComing soon
- Travel & moneyComing soon