Mass and Weight · Unit Converter

Convert Gram to Planck Mass

Convert grams to planck mass instantly. 1 gram = 45940.8924477767 planck mass — use the live calculator, the exact formula, a conversion table and worked examples. Also check the Planck Mass to Gram converter for the reverse conversion.

Written by Sunith Babu L, Ph.D., Lead Engineer Reviewed by Dr. Ashok Kumar K, Ph.D.
Mass and Weight category 2 min read Published Last reviewed Updated

Units explained

Metric / SI

Gram

What is a gram?

The gram (g) equals one-thousandth of a kilogram.

Origin of the gram

From Late Latin 'gramma', a small weight or scruple.

Where it is used

The everyday metric unit for food, medicine, and small objects.

When and where it was developed

Defined in 1795 as the mass of one cubic centimeter of water at melting point.

Scientific / Atomic

Planck Mass

What is a planck mass?

The Planck mass equals about 2.18E-8 kg, formed from the constants h-bar, c, and G.

Origin of the planck mass

Introduced by Max Planck in 1899 as part of a system of natural units.

Where it is used

Theoretical physics and quantum-gravity research.

When and where it was developed

Defined by Planck in 1899 from fundamental constants.

Gram to Planck 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 grams and planck mass:

1 g = 45940.8924477767 mP
1 mP = 2.17671e-5 g

To convert grams to planck mass, multiply the value in grams by 45940.8924477767. To reverse, multiply planck mass by 2.17671e-5.

How to use this converter

Type a value into the calculator. The result in planck 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 Planck Mass to Gram converter for the reverse direction.

Step-by-step: convert grams to planck mass

  1. Write down the value in grams (g).
  2. Multiply that value by the factor 45940.8924477767.
  3. The product is the equivalent value in planck mass (mP).
  4. To reverse, multiply the planck mass value by 2.17671e-5.

Worked examples

Example 1 — Convert 1 g to mP:
1 × 45940.8924477767 = 45940.8924477767 mP

Example 2 — Convert 100 g to mP:
100 × 45940.8924477767 = 4594089.2447776692 mP

Real-world example — Centimeter to wavelength scale

One gram equals 10 million planck mass. Physics curricula use this kind of conversion to relate everyday measurements to atomic and optical scales.

1 g × 45940.8924477767 = 45940.8924477767 mP

Real-world example — Small-scale to atomic-scale

One gram equals 10 million planck mass — useful for physics curricula that relate everyday measurements to atomic and optical scales.

1 g × 45940.8924477767 = 45940.8924477767 mP

Gram to Planck Mass conversion table

Standard reference values for converting grams to planck mass:

Gram [g]Planck Mass [mP]
0.01459.4089244778
0.14594.0892447777
145940.8924477767
291881.7848955534
3137822.6773433301
4183763.5697911068
5229704.4622388835
10459408.9244777669
20918817.8489555338
301378226.7734333007
401837635.6979110676
502297044.6223888346
1004594089.2447776692
5002.297045e+7
10004.594089e+7

Frequently asked questions

How many planck mass is 1 gram?
1 gram equals 45940.8924477767 planck mass.
How do I convert grams to planck mass?
Multiply the value in grams by 45940.8924477767 to get planck mass.
How do I convert planck mass back to grams?
Multiply the value in planck mass by 2.17671e-5, or use the Planck Mass to Gram converter.
How many planck mass is 100 grams?
100 grams equals 4594089.2447776692 planck mass, because 100 × 45940.8924477767 = 4594089.2447776692.

Convert Gram to other weight units

Show all Gram conversions
Metric / SI (17 units)
Gram to Attogram (ag) Gram to Femtogram (fg) Gram to Picogram (pg) Gram to Nanogram (ng) Gram to Microgram (µg) Gram to Milligram (mg) Gram to Centigram (cg) Gram to Decigram (dg) Gram to Dekagram (dag) Gram to Hectogram (hg) Gram to Kilogram (kg) Gram to Quintal (metric) (q) Gram to Metric Ton (t) Gram to Gigagram (Gg) Gram to Teragram (Tg) Gram to Petagram (Pg) Gram to Exagram (Eg)
Avoirdupois (15 units)
Gram to Grain (gr) Gram to Dram (avoirdupois) (dr) Gram to Ounce (oz) Gram to Pound (lb) Gram to Clove (clove) Gram to Stone (US) (st) Gram to Stone (UK) (st) Gram to Quarter (US) (qr) Gram to Quarter (UK) (qr) Gram to Hundredweight (US) (cwt) Gram to Hundredweight (UK) (cwt) Gram to Wey (wey) Gram to Kilopound (kip) (kip) Gram to Ton (short, US) (sh tn) Gram to Ton (long, UK) (long tn)
Troy & Apothecary (10 units)
Gram to Point (1/100 carat) (pt) Gram to Carat (metric) (ct) Gram to Scruple (apothecary) (s ap) Gram to Pennyweight (dwt) Gram to Momme (mom) Gram to Mace (mace) Gram to Dram (apothecary/troy) (dr ap) Gram to Troy Ounce (oz t) Gram to Tael (tael) Gram to Pound (troy/apothecary) (lb t)
Indian / South Asian (6 units)
Gram to Ratti (ratti) Gram to Masha (masha) Gram to Tola (tola) Gram to Chittack (Chatank) (chittack) Gram to Seer (Ser) (seer) Gram to Maund (Mann) (maund)
Scientific / Atomic (9 units)
Gram to Electron Mass (rest) (me) Gram to MeV/c2 (MeV/c²) Gram to Muon Mass (mµ) Gram to Atomic Mass Unit (u) Gram to Proton Mass (mp) Gram to Neutron Mass (mn) Gram to Deuteron Mass (md) Gram to Carbon-12 Atom Mass (C-12) Gram to Planck Mass (mP)
Astronomical (4 units)
Gram to Lunar Mass (Moon) (M☾) Gram to Earth's Mass (M⊕) Gram to Jupiter Mass (MJ) Gram to Sun's Mass (M☉)
Biblical / Ancient (14 units)
Gram to Lepton (Biblical Roman) (lepton) Gram to Quadrans (Biblical Roman) (quadrans) Gram to Assarion (Biblical Roman) (assarion) Gram to Gerah (Biblical Hebrew) (gerah) Gram to Drachma (Biblical Greek) (drachma) Gram to Denarius (Biblical Roman) (denarius) Gram to Bekan (Biblical Hebrew) (bekah) Gram to Didrachma (Biblical Greek) (didrachma) Gram to Shekel (Biblical Hebrew) (shekel) Gram to Tetradrachma (Biblical Greek) (tetra) Gram to Mina (Biblical Greek) (mina) Gram to Mina (Biblical Hebrew) (mina) Gram to Talent (Biblical Greek) (talent) Gram to Talent (Biblical Hebrew) (talent)
Force / Engineering (5 units)
Gram to Poundal (pdl) Gram to Ton (assay) (US) (AT) Gram to Ton (assay) (UK) (AT) Gram to Kilogram-force square second/meter (hyl) Gram to Slug (slug)

Sources & references

Conversion factor (1 g = 45940.8924477767 mP) verified against the following authoritative sources:

Results are provided for general reference. Verify critical measurements against an authoritative standard.