/**
 * Converts length unit
 *
 * @param  {number} value Input value
 * @param  {string} fromUnit From length unit
 * @param  {string} toUnit To length unit
 *
 * @return {number}       Value in toUnit
 */
declare function convertUnitLength(value: number, fromUnit: string, toUnit: string): number;
/**
 * Convert value in time unit
 *
 * @param  {number} value Input value
 * @param  {string} fromUnit From length unit
 * @param  {string} toUnit To length unit
 *
 * @return {number}       Value in kilometre
 */
declare function convertUnitTime(value: number, fromUnit: string, toUnit: string): number;
/**
 * Converts metre to kilometre
 *
 * @param  {number} value Input value
 *
 * @return {number}       Value in kilometre
 */
declare function metreToKilometre(value: number): number;
/**
 * Converts kilometre to metre
 *
 * @param  {number} value Input value
 *
 * @return {number}       Value in metre
 */
declare function kilometreToMetre(value: number): number;
export { convertUnitLength, convertUnitTime, metreToKilometre, kilometreToMetre };