import { Area, DigitalStorage, DataTransferRate, Energy, Frequency, FuelEconomics, Length, Mass, PlaneAngle, Pressure, Speed, Temperature, Time, Volume, UNIT_TYPE } from './interface';
export declare function convert(value: number, fromUnit: Area | DataTransferRate | DigitalStorage | Energy | Frequency | FuelEconomics | Length | Mass | PlaneAngle | Pressure | Speed | Temperature | Time | Volume, toUnit: Area | DataTransferRate | DigitalStorage | Energy | Frequency | FuelEconomics | Length | Mass | PlaneAngle | Pressure | Speed | Temperature | Time | Volume, unitType: UNIT_TYPE): number | string;
declare const uc: {
    convert: typeof convert;
};
export default uc;