Grain to Troy ounce Converter (and vice versa)
Created by: tinycalcs.com/en
Number of supported units: 2
Last update: 2026
This converter allows you to convert grains [gr.] to troy ounces [oz.tr.] or troy ounces [oz.tr.] to grains [gr.]. 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 grains to troy ounces
There are two simple ways to convert grains [gr.] to troy ounces [oz.tr.]. In the first calculation method, the value in grains [gr.] is divided by 480. The second method multiplies the value in grains [gr.] by the rounded conversion factor of 0.0021.
- Troy ounces [oz.tr.] = grains [gr.] ÷ 480
- Troy ounces [oz.tr.] ≈ grains [gr.] * 0.0021
The calculation method with a rounded conversion value is more suitable for rough conversions from grains [gr.] to troy ounces [oz.tr.], as the calculation result may contain rounding errors. Therefore, the variant with the exact conversion factor is more suitable.
Convert troy ounces to grains
Converting troy ounces [oz.tr.] to grains [gr.] is easy and can be done in two ways. The first method involves multiplication, whereby the value in troy ounces [oz.tr.] is multiplied by 480. The second variant is a division. Here, the value in troy ounces [oz.tr.] is divided by the rounded conversion factor of 0.0021.
- Grains [gr.] = troy ounces [oz.tr.] * 480
- Grains [gr.] ≈ troy ounces [oz.tr.] ÷ 0.0021
The rounded conversion value can cause rounding errors, resulting in inaccurate calculation results. To ensure that the conversion from troy ounces [oz.tr.] to grains [gr.] produces the most accurate calculation result possible, the conversion should be performed using the exact conversion factor.
Converter
Decimal places
How it's calculated
To all available units
Grams
Carats
Grams
Centigrams
Grams
Decagrams
Grams
Decigrams
Grams
Femtograms
Popular with other users …
Angle
Converting angle units requires the use of special formulas, which can be complicated and confusing. The angle converter eliminates the complexity and helps you convert between different angle units without errors.
Angle converter
Area
The size of an area is usually given in acres, square meters, square kilometers, or in relation to a soccer field. With the area converter, all common area units can be converted quickly and accurately.
Area converter
Capacitance
Capacitors usually have values significantly smaller than one farad, which is why capacitance values with SI prefixes are particularly common. The capacitance converter is ideal for converting between different units of electrical capacitance.
Capacitance converter
Current
Manually converting between non-standard electricity units can be confusing and prone to errors. The electricity converter simplifies this process by eliminating complexity and providing accurate, error-free results.
Current converter