An Islamic measure of weight (in Arabic script: مثقال) that is equal to 4.25 grams (0.137 ozt). As a unit of weight/ mass, it is commonly used for measuring the weight/ mass of precious metals, such as gold and silver, and other commodities, like saffron. Other sources (al-Qawaid al-Fiqhiyah) specifies its weight as equal to 4 grams and 374 milligrams.

Mithqal was the weight of the canonical gold dinar (minted by the Umayyads/ Omayyads in the 70s of first Hijri century), whose issuance continued unabated over a span of 56 years, the end of which witnessed the collapse of the Caliphate state at the hands of the Abbasids in AH 132- Abbasid revolution, 750 CE). Thereafter, the Abbasids followed the same monetary norms in terms of weight, but only in the first phase of the Caliphate, and in latter phases, norms diverted from this canonical weight.

Mithqal is at times spelled misqal or mithqal.