Handy Units
Ratio & Concentration Converter
Percent, per mille, basis points, ppm, ppb and ppt, for interest rates, water quality and concentrations.
Common ratio & concentration conversions
All ratio & concentration units
| Unit | Symbol | Relation |
|---|---|---|
| Percent | % | — |
| Per mille | ‰ | 1 ‰ = 0.1 % |
| Basis point | bp | 1 bp = 0.01 % |
| Parts per million | ppm | 1 ppm = 0.0001 % |
| Parts per billion | ppb | 1 ppb ≈ 1 × 10⁻⁷ % |
| Parts per trillion | ppt | 1 ppt ≈ 1 × 10⁻¹⁰ % |
More converters
TemperatureLengthFuel EconomyEV EfficiencyCurrencyWeightAreaVolumeSpeedPressureTimePowerEnergyDataBlood GlucoseDensityAngleForceTorqueAccelerationFlow RateFrequencyViscosityIlluminanceData RateVoltageCurrentResistanceCapacitanceInductanceChargeMagnetic FieldMagnetic InductionMagnetic FluxRadioactivityAbsorbed DoseRadiation Dose