Unit Converter: Length, Weight

Instantly convert units across 11 categories, from length, weight, and temperature to area, speed, data capacity, pressure, and fuel economy.

◆ Supported Categories (11)
・Length: mm / cm / m / km / in / ft / yd / mi
・Weight: mg / g / kg / t / oz / lb / st
・Temperature: °C / °F / K
・Volume: mL / L / m³ / tsp / tbsp / cup / fl.oz / gal
・Area: m² / km² / ha / a / tsubo / ft² / ac
・Speed: m/s / km/h / mph / kn / ft/s
・Time: s / min / h / d / wk / yr
・Data: B / KB / MB / GB / TB
・Pressure: Pa / kPa / hPa / bar / atm / mmHg / psi
・Energy: J / kJ / cal / kcal / Wh / kWh
・Fuel Economy: km/L / L/100km / mpg

◆ Key Features
・Simultaneously convert and display all units in a category from a single input
・Supports common Japanese units like tsubo, a, tsp, and tbsp
・No formulas needed; just enter the number

This app is free to use. It requires no internet connection and works reliably offline.