Fluid ounce to US fluid dram Converter (and vice versa)
Created by: tinycalcs.com/en
Number of supported units: 2
Last update: 2026
This converter allows you to convert fluid ounces [Imp.fl.oz.] to US fluid drams [US.fl.dr.] or US fluid drams [US.fl.dr.] to fluid ounces [Imp.fl.oz.]. Calculations are performed in both directions. The calculation result and the entered value are displayed with up to 20 decimal places for maximum accuracy.
Convert fluid ounces to US fluid drams
There are two simple ways to convert fluid ounces [Imp.fl.oz.] to US fluid drams [US.fl.dr.]. In the first calculation method, the value in fluid ounces [Imp.fl.oz.] is divided by the rounded conversion factor of 0.1301. The second method multiplies the value in fluid ounces [Imp.fl.oz.] by the rounded conversion factor of 7.6861.
- US fluid drams [US.fl.dr.] ≈ fluid ounces [Imp.fl.oz.] ÷ 0.1301
- US fluid drams [US.fl.dr.] ≈ fluid ounces [Imp.fl.oz.] * 7.6861
However, rounded conversion values are only suitable for rough conversions, as rounding errors can occur in the calculation result. The most accurate conversion of fluid ounces [Imp.fl.oz.] to US fluid drams [US.fl.dr.] can be achieved using the following calculation method.
- US fluid drams [US.fl.dr.] = fluid ounces [Imp.fl.oz.] ÷ 60.48375 ÷ 977.9 * 454,609
Convert US fluid drams to fluid ounces
Converting US fluid drams [US.fl.dr.] to fluid ounces [Imp.fl.oz.] is easy and can be done in two ways. The first method involves multiplication, in which the value in US fluid drams [US.fl.dr.] is multiplied by the rounded conversion factor of 0.1301. The second variant is a division. Here, the value in US fluid drams [US.fl.dr.] is divided by the rounded conversion factor of 7.6861.
- Fluid ounces [Imp.fl.oz.] ≈ US fluid drams [US.fl.dr.] * 0.1301
- Fluid ounces [Imp.fl.oz.] ≈ US fluid drams [US.fl.dr.] ÷ 7.6861
However, rounded conversion values do not allow for exact calculations because rounding errors can occur in the calculation result. The most accurate conversion of US fluid drams [US.fl.dr.] to fluid ounces [Imp.fl.oz.] can be achieved using the following calculation method.
- Fluid ounces [Imp.fl.oz.] = US fluid drams [US.fl.dr.] * 60.48375 * 977.9 ÷ 454,609
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Fluid ounces
US fluid ounces
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