A Millicoulomb (mC) equals 1/1,000 coulomb(s), a scaled unit of electric charge used for milli-scale electrical work.
Millicoulombs to Attocoulombs
Convert Millicoulomb (mC) to Attocoulomb (aC) instantly with an exact formula, conversion table, and FAQ.
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Convert millicoulombs (mC) to attocoulombs (aC) instantly with formula, conversion table, and FAQ.
Context values
Some unit families need one extra value for a physically accurate result.
An Attocoulomb (aC) equals 1e-18 coulomb(s), a scaled unit of electric charge used for atto-scale electrical work.
aC = mC × 1.000000e+15
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Formula
aC = mC × 1.000000e+15
mC = aC × 1.000000e-15
Conversion table
| 1 mC | 1.000000e+15 aC |
| 5 mC | 5.000000e+15 aC |
| 10 mC | 1.000000e+16 aC |
| 20 mC | 2.000000e+16 aC |
| 50 mC | 5.000000e+16 aC |
| 100 mC | 1.000000e+17 aC |
| 500 mC | 5.000000e+17 aC |
| 1000 mC | 1.000000e+18 aC |
Related conversions
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How the formula works
Both millicoulomb and attocoulomb measure the same physical quantity, so converting between them is a single multiplication. Multiply a value in millicoulombs by 1.000000e+15 to get attocoulombs. To reverse the conversion, multiply a attocoulomb value by 1.000000e-15 to get back to millicoulombs.
Frequently asked questions
What is Millicoulomb (mC)?
A Millicoulomb (mC) equals 1/1,000 coulomb(s), a scaled unit of electric charge used for milli-scale electrical work.
What is Attocoulomb (aC)?
An Attocoulomb (aC) equals 1e-18 coulomb(s), a scaled unit of electric charge used for atto-scale electrical work.
How do I convert millicoulombs to attocoulombs?
Multiply the millicoulomb value by 1.000000e+15 to get the equivalent in attocoulombs. For example, 5 mC × 1.000000e+15 = 5.000000e+15 aC.
Is this conversion exact?
Yes. Both units use fixed, defined scale factors, so the factor 1.000000e+15 is an exact, non-rounded value.
Can I convert attocoulombs back to millicoulombs?
Yes. Divide the attocoulomb value by 1.000000e+15, or multiply it by 1.000000e-15, to get millicoulombs.
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About converting millicoulombs to attocoulombs
A Millicoulomb (mC) equals 1/1,000 coulomb(s), a scaled unit of electric charge used for milli-scale electrical work. An Attocoulomb (aC) equals 1e-18 coulomb(s), a scaled unit of electric charge used for atto-scale electrical work.
Use this calculator to move between millicoulombs and attocoulombs accurately for homework, engineering, billing, or everyday electricity calculations. The Universal Converter uses exact unit factors, so results stay consistent across the site.