Convert Pennyweight to Sun's Mass
Convert pennyweights to sun's mass instantly. 1 pennyweight = 7.775869e-34 sun's mass — use the live calculator, the exact formula, a conversion table and worked examples. Also check the Sun's Mass to Pennyweight converter for the reverse conversion.
Units explained
Pennyweight
The pennyweight (dwt) equals one-twentieth of a troy ounce, 24 grains (about 1.555 g).
From the mass of a medieval English silver penny; symbol dwt from 'denarius weight'.
Jewelry making and precious-metal scrap valuation in the US.
Derived from the medieval English coinage system.
Sun's Mass
The solar mass (M(S)) is about 2.0E30 kg.
The standard unit for expressing stellar and galactic masses.
Astrophysics and cosmology.
Established as astronomers measured the Sun's gravitational influence.
Pennyweight to Sun's Mass conversion formula
Note: this conversion uses a generally accepted modern value. Historical and regional definitions of this unit varied across times and places.
The relationship between pennyweights and sun's mass:
To convert pennyweights to sun's mass, multiply the value in pennyweights by 7.775869e-34. To reverse, multiply sun's mass by 1.28603e+33.
How to use this converter
Type a value into the calculator. The result in sun's mass updates as you type. Tap a quick value, copy the result with one click, or use the swap arrow to jump straight to the Sun's Mass to Pennyweight converter for the reverse direction.
Step-by-step: convert pennyweights to sun's mass
- Write down the value in pennyweights (dwt).
- Multiply that value by the factor 7.775869e-34.
- The product is the equivalent value in sun's mass (M☉).
- To reverse, multiply the sun's mass value by 1.28603e+33.
Worked examples
Example 1 — Convert 1 dwt to M☉:
1 × 7.775869e-34 = 7.775869e-34 M☉
Example 2 — Convert 100 dwt to M☉:
100 × 7.775869e-34 = 7.775869e-32 M☉
Real-world example — Hardware-scale dimensions
A 10-pennyweight fastener or component is about as long as a thumbnail. Mechanics and DIY enthusiasts convert between pennyweights and sun's mass daily when mixing metric and imperial tools.
10 dwt × 7.775869e-34 = 7.775869e-33 M☉
Real-world example — Postcard and small-object dimensions
A postcard is about 5 pennyweights wide. Converting to sun's mass is essential for international postal addressing forms that ask for dimensions in different units across countries.
5 dwt × 7.775869e-34 = 3.887934e-33 M☉
Real-world example — Ruler-scale measurements
A 30-pennyweight school ruler converts cleanly to sun's mass — useful when buying a desk accessory from a retailer whose product specs use a different unit.
30 dwt × 7.775869e-34 = 2.332761e-32 M☉
Pennyweight to Sun's Mass conversion table
Standard reference values for converting pennyweights to sun's mass:
| Pennyweight [dwt] | Sun's Mass [M☉] |
|---|---|
| 0.01 | 7.775869e-36 |
| 0.1 | 7.775869e-35 |
| 1 | 7.775869e-34 |
| 2 | 1.555174e-33 |
| 3 | 2.332761e-33 |
| 4 | 3.110348e-33 |
| 5 | 3.887934e-33 |
| 10 | 7.775869e-33 |
| 20 | 1.555174e-32 |
| 30 | 2.332761e-32 |
| 40 | 3.110348e-32 |
| 50 | 3.887934e-32 |
| 100 | 7.775869e-32 |
| 500 | 3.887934e-31 |
| 1000 | 7.775869e-31 |
Frequently asked questions
How many sun's mass is 1 pennyweight?
How do I convert pennyweights to sun's mass?
How do I convert sun's mass back to pennyweights?
How many sun's mass is 100 pennyweights?
Popular weight unit conversions
Convert Pennyweight to other weight units
Show all Pennyweight conversions
Metric / SI (18 units)
Avoirdupois (15 units)
Troy & Apothecary (9 units)
Indian / South Asian (6 units)
Scientific / Atomic (9 units)
Astronomical (4 units)
Biblical / Ancient (14 units)
Sources & references
Conversion factor (1 dwt = 7.775869e-34 M☉) verified against the following authoritative sources:
- BIPM — The International System of Units (SI Brochure 9th ed.)
Official BIPM publication defining the seven SI base units (including the meter) and the rules for their use. The global authority on units of measurement.
- NIST — Guide to the SI
US National Institute of Standards and Technology reference covering the SI base and derived units with definitions and usage rules for US technical practice.
- NIST Special Publication 811 — Guide for the Use of the International System of Units
Detailed NIST guide covering exact conversion factors between SI and US customary units along with formatting and rounding conventions.
- NIST — Refinement of values for the yard and pound (Federal Register 1959)
The treaty (signed by US
- International Astronomical Union — System of Astronomical Constants
The IAU defines astronomical units including the AU (149597870700 m exactly) light-year and parsec used in astronomy and astrophysics.