Troy Ounces to Femtograms Converter
Enter the weight in troy ounces below to convert it to femtograms.
Convert Troy Ounces to Femtograms
Enter a value in troy ounces (oz t) to convert to femtograms (fg).
Troy Ounce to Femtogram Conversion Table
Table showing various troy ounce measurements converted to femtograms. Click any preset value or arrow to load it into the converter.
| Troy Ounces (oz t) | Femtograms (fg) |
|---|---|
| 0.0000001 oz t | 3,110,347,680 fg |
| 0.0000002 oz t | 6,220,695,360 fg |
| 0.0000003 oz t | 9,331,043,040 fg |
| 0.0000004 oz t | 12,441,390,720 fg |
| 0.0000005 oz t | 15,551,738,400 fg |
| 0.0000006 oz t | 18,662,086,080 fg |
| 0.0000007 oz t | 21,772,433,760 fg |
| 0.0000008 oz t | 24,882,781,440 fg |
| 0.0000009 oz t | 27,993,129,120 fg |
| 0.00000001 oz t | 311,034,768 fg |
How to Convert Troy Ounces to Femtograms
To convert troy ounces to femtograms, multiply the weight by the following conversion ratio: 3.110348e+16 femtograms/troy ounce.
Since one troy ounce is equal to 3.110348e+16 femtograms, you can use this simple formula to convert:
The weight in femtograms is equal to the weight in troy ounces multiplied by 3.110348e+16.
For example, here's how to convert 5 troy ounces to femtograms using the formula above.
How Many Femtograms Are in a Troy Ounce?
There are 3.110348e+16 femtograms in a troy ounce, which is why we use this value in the formula above.
Our troy ounce to femtogram calculator automatically converts your weight measurements with full decimal and scientific precision across US customary, imperial, and SI metric standards.
Troy Ounces and femtograms are both units used to measure weight. Keep reading to learn more about each unit.
What Is a Troy Ounce?
A troy ounce is a unit of weight equal to 0.0311035 kilograms (kg), the base unit for weight. Precious metal (gold, silver, platinum) mass standard equal to 480 grains or exactly 31.1034768 grams. [1]
The troy ounce is classified as a standard unit of weight. Troy Ounces can be abbreviated as oz t; for example, 1 troy ounce can be written as 1 oz t.
When working with troy ounces (oz t) in formulas or technical specifications, always verify whether your target system uses SI metric, US customary, or British imperial standards.
In practice, troy ounces (oz t) are widely used across standard weight applications within international standard workflows, engineering documentation, and technical data sheets.
What Is a Femtogram?
A femtogram is a unit of weight equal to 1/999,999,999,999,999,900 of a kilogram (1e-18 kg). 10⁻¹⁸ kilograms. [2]
The femtogram is classified as a metric and SI-compatible unit of weight. Femtograms can be abbreviated as fg; for example, 1 femtogram can be written as 1 fg.
In the metric system, "femto" is the standard SI prefix for quadrillionths, or 10⁻¹⁵. This makes the femtogram (fg) a convenient decimal multiple of the gram (g).
In practice, femtograms (fg) are widely used across fine-tolerance laboratory, analytical, and micro-scale weight measurements within SI metric workflows, engineering documentation, and technical data sheets.
When converting weight between troy ounces (oz t) and femtograms (fg), keep full floating-point precision (1 oz t = 3.110348e+16 fg; 1 fg = 3.215075e-17 oz t) during intermediate calculations and round only the final femtogram figure to match your instrument tolerance.
More Troy Ounce & Femtogram Conversions
Need to calculate in the opposite direction? Use our femtograms to troy ounces calculator to switch your starting unit immediately. You can also explore related tools such as converting femtograms to troy ounces, converting troy ounces to grams, or converting kilograms to pounds.
Convert from Troy Ounces
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Frequently Asked Questions
References
- [1]NIST OWM StandardNIST OWM (SI Units — Mass)·Mass & Weight Metrology Standard — Troy Ounces (oz t) to Femtograms (fg)
- [2]NIST HB 44 SpecificationNIST HB 44 (NIST Handbook 44 (Current Ed.))·Unit Specifications: Troy Ounce (oz t) & Femtogram (fg)
- [3]BIPM ReferenceBIPM (SI Base Unit: Kilogram (kg))·Conversion Factors & Mathematical Basis (oz t to fg)