A SPRING BALANCE

A spring balance is provided to easily measure relatively small weight and relatively large weight with one spring balance including a first weight measuring unit and a second weight measuring unit. A spring balance includes a support frame(100), an equal-arm rod(200), an object setting unit(300), a first weight measuring unit(400), and a level adjustment unit(500). The equal-arm rod is rotatable by supporting a central axis to the support frame. The object setting unit is installed on one end of the equal-arm rod and receives load of an object. The first weight measuring unit, including a first spring(410), is installed on the other end of the equal-arm rod to measure the load of the object. The level adjustment unit, including a third spring(510), is installed on the other end of the equal-arm rod to face the first weight measuring unit and levels the equal-arm rod.