Everything you need, nothing you don't
A professional tool that stays out of your way.
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100% Offline
All conversions run on your device. No internet required — ever.
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77+ Categories
Common, engineering, heat, fluids, light, electricity, magnetism, and radiology.
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Real-Time
Bidirectional live conversion as you type. No "Convert" button needed.
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Favourites
Save your most-used unit pairs for one-tap access.
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History
Automatic conversion history stored locally — pick up where you left off.
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Dark & Light
Dark, light, and system theme modes. Looks great on any screen.
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No Data Collected
We collect absolutely nothing. No account, no analytics, no ads.
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Reference Tables
Every converter includes a full unit reference table for quick lookup.
77+ CATEGORIES
From everyday to scientific
Covering all SI units and more — every converter you'll ever need.
📐Common
LengthWeightVolumeTemperatureAreaSpeedPressureEnergyPowerTimeFuel ConsumptionData StorageNumber Bases
⚙️Engineering
Angular VelocityAccelerationDensityTorqueMoment of ForceSpecific Volume
🔥Heat
Thermal ConductivitySpecific HeatHeat FluxTemperature IntervalThermal Expansion
💧Fluids
Volumetric FlowMass FlowViscositySurface TensionConcentration
💡Light
LuminanceIlluminationLuminous IntensityDigital ResolutionFrequency & Wavelength
⚡Electricity
ChargeCurrentResistanceCapacitanceInductanceVoltageConductance
🧲Magnetism
Magnetic FluxField StrengthMagnetomotive ForceMagnetic Flux Density
☢️Radiology
RadiationAbsorbed DoseActivityExposure
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Zilonex Unit Converter collects zero data. No account required, no analytics, no ads, no internet connection. Everything stays on your device.
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