Browse all 26 free tools below.
VYONETIX · FREE PRACTICAL TOOLS
Clear checks for everyday repairs and buying decisions
Use a free calculator or step-by-step check first. Calculators accept local measurements and values worldwide. Retailer links and product availability depend on the market you choose.
Laptop battery model finder
Open tool Home & Office PowerAppliance electricity cost
Open tool Coffee & KitchenMeal cost per serving
Open tool Monochrome LaserBrother toner and drum planner
Open tool Supertank & InkjetCanon maintenance cartridge check
Open tool Home & Office PowerUPS battery runtime scenario
Open tool Printer RepairPrinter troubleshooting and first checks
Open tool Monochrome LaserPrinter parts and supplies finder
Open tool Home & Office PowerPower continuity planner
Open tool Home & Office PowerUPS VA and watt check
Open toolMore practical tools
Phone charging time and accessory finder
Estimate a phone charging window from the battery size, charger rating and an efficiency allowance, then browse accessories for your device.
Open tool →Global calculator · local valuesKitchen batch scaler and appliance accessory finder
Scale ingredient quantities to a different serving count and browse accessories for common kitchen appliances.
Open tool →Global calculator · local valuesShelf storage capacity planner
Estimate how many same-size rectangular bins fit across a shelf, with a clearance allowance.
Open tool →Global calculator · local valuesPet food quantity and budget planner
Convert a label-based daily portion into a month’s quantity and an estimated cost using your own price per kilogram.
Open tool →Global calculator · local valuesCoffee machine cost-per-cup planner
Compare your entered home-brew cost with a bought-drink cost and estimate a simple break-even point.
Open tool →Global calculator · local valuesVacuum cleaning time estimator
Estimate a cleaning session from floor area and your own observed cleaning rate.
Open tool →Global calculator · local valuesLaptop USB-C charger headroom planner
Add a chosen planning margin to your laptop’s stated power requirement before you compare charger options.
Open tool →Global calculator · local valuesPrinter toner and drum cost-per-page calculator
Use the yield and cost printed for your own cartridge and drum to estimate a combined cost per page.
Open tool →Global calculator · local valuesTravel packing volume planner
Compare a rectangular luggage volume estimate with a summed list of packed item volumes.
Open tool →Global calculator · local valuesGame download time estimator
Estimate a download window from file size, connection speed and a network-use allowance.
Open tool →Global calculator · local valuesNAS usable capacity and reserve planner
Estimate decimal usable drive capacity after reserving whole drives for a stated parity or mirror allowance.
Open tool →Global calculator · local values3D printer filament length and spool planner
Estimate filament length from spool mass, filament diameter and material density, with an allowance for unusable end and waste.
Open tool →Global calculator · local valuesAir purifier room CADR and air-change planner
Compare a room-volume air-change target with the clean-air delivery rate you enter for a purifier.
Open tool →Global calculator · local valuesSSD write-endurance service-life planner
Translate a drive’s stated TBW endurance rating and your estimated daily writes into a rough planning interval.
Open tool →Global calculator · local valuesEV home charging time and energy-cost planner
Estimate grid energy, charging time and electricity cost for a chosen battery state-of-charge change.
Open tool →Laptop hardware & memoryDDR5 timing and bandwidth planner
Compare CAS time estimates and theoretical bandwidth from entered memory specifications.
Open tool →