Carats to Picograms Converter
Enter the weight in carats below to convert it to picograms.
Convert Carats to Picograms
Enter a value in carats (ct) to convert to picograms (pg).
Metric Carat to Picogram Conversion Table
Table showing various metric carat measurements converted to picograms. Click any preset value or arrow to load it into the converter.
| Carats (ct) | Picograms (pg) |
|---|---|
| 0.0000001 ct | 20,000 pg |
| 0.0000002 ct | 40,000 pg |
| 0.0000003 ct | 60,000 pg |
| 0.0000004 ct | 80,000 pg |
| 0.0000005 ct | 100,000 pg |
| 0.0000006 ct | 120,000 pg |
| 0.0000007 ct | 140,000 pg |
| 0.0000008 ct | 160,000 pg |
| 0.0000009 ct | 180,000 pg |
| 0.00000001 ct | 2,000 pg |
How to Convert Carats to Picograms
To convert carats to picograms, multiply the weight by the following conversion ratio: 200,000,000,000 picograms/metric carat.
Since one metric carat is equal to 200,000,000,000 picograms, you can use this simple formula to convert:
The weight in picograms is equal to the weight in carats multiplied by 200,000,000,000.
For example, here's how to convert 5 carats to picograms using the formula above.
How Many Picograms Are in a Metric Carat?
There are 200,000,000,000 picograms in a metric carat, which is why we use this value in the formula above.
Our metric carat to picogram calculator automatically converts your weight measurements with full decimal and scientific precision across US customary, imperial, and SI metric standards.
Carats and picograms are both units used to measure weight. Keep reading to learn more about each unit.
What Is a Metric Carat?
A metric carat is a unit of weight equal to 1/5,000 of a kilogram (0.0002 kg). Gemstone mass unit equal to 0.2 grams (200 mg). [1]
The metric carat is classified as a metric and SI-compatible unit of weight. Carats can be abbreviated as ct; for example, 1 metric carat can be written as 1 ct.
When working with carats (ct) in formulas or technical specifications, always verify whether your target system uses SI metric, US customary, or British imperial standards.
In practice, carats (ct) are widely used across fine-tolerance laboratory, analytical, and micro-scale weight measurements within SI metric workflows, engineering documentation, and technical data sheets.
What Is a Picogram?
A picogram is a unit of weight equal to 1e-15 kilograms (kg), the base unit for weight. One-trillionth of a gram (10⁻¹⁵ kg). [2]
The picogram is classified as a metric and SI-compatible unit of weight. Picograms can be abbreviated as pg; for example, 1 picogram can be written as 1 pg.
In the metric system, "pico" is the standard SI prefix for trillionths, or 10⁻¹². This makes the picogram (pg) a convenient decimal multiple of the gram (g).
In practice, picograms (pg) 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 carats (ct) and picograms (pg), keep full floating-point precision (1 ct = 200,000,000,000 pg; 1 pg = 5e-12 ct) during intermediate calculations and round only the final picogram figure to match your instrument tolerance.
More Carat & Picogram Conversions
Need to calculate in the opposite direction? Use our picograms to carats calculator to switch your starting unit immediately. You can also explore related tools such as converting picograms to carats, converting carats to grams, or converting kilograms to pounds.
Convert from Carats
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Frequently Asked Questions
References
- [1]NIST OWM StandardNIST OWM (SI Units — Mass)·Mass & Weight Metrology Standard — Carats (ct) to Picograms (pg)
- [2]NIST HB 44 SpecificationNIST HB 44 (NIST Handbook 44 (Current Ed.))·Unit Specifications: Metric Carat (ct) & Picogram (pg)
- [3]BIPM ReferenceBIPM (SI Base Unit: Kilogram (kg))·Conversion Factors & Mathematical Basis (ct to pg)