An Exacoulomb (EC) equals 1e+18 coulomb(s), a scaled unit of electric charge used for exa-scale electrical work.
Exacoulombs to Coulombs
Convert Exacoulomb (EC) to Coulomb (C) instantly with an exact formula, conversion table, and FAQ.
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Convert exacoulombs (EC) to coulombs (C) instantly with formula, conversion table, and FAQ.
Context values
Some unit families need one extra value for a physically accurate result.
The coulomb (C) is the SI unit of electric charge, equal to the charge carried by a steady current of one ampere flowing for one second.
C = EC × 1.000000e+18
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Formula
C = EC × 1.000000e+18
EC = C × 1.000000e-18
Conversion table
| 1 EC | 1.000000e+18 C |
| 5 EC | 5.000000e+18 C |
| 10 EC | 1.000000e+19 C |
| 20 EC | 2.000000e+19 C |
| 50 EC | 5.000000e+19 C |
| 100 EC | 1.000000e+20 C |
| 500 EC | 5.000000e+20 C |
| 1000 EC | 1.000000e+21 C |
Related conversions
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How the formula works
Both exacoulomb and coulomb measure the same physical quantity, so converting between them is a single multiplication. Multiply a value in exacoulombs by 1.000000e+18 to get coulombs. To reverse the conversion, multiply a coulomb value by 1.000000e-18 to get back to exacoulombs.
Frequently asked questions
What is Exacoulomb (EC)?
An Exacoulomb (EC) equals 1e+18 coulomb(s), a scaled unit of electric charge used for exa-scale electrical work.
What is Coulomb (C)?
The coulomb (C) is the SI unit of electric charge, equal to the charge carried by a steady current of one ampere flowing for one second.
How do I convert exacoulombs to coulombs?
Multiply the exacoulomb value by 1.000000e+18 to get the equivalent in coulombs. For example, 5 EC × 1.000000e+18 = 5.000000e+18 C.
Is this conversion exact?
Yes. Both units use fixed, defined scale factors, so the factor 1.000000e+18 is an exact, non-rounded value.
Can I convert coulombs back to exacoulombs?
Yes. Divide the coulomb value by 1.000000e+18, or multiply it by 1.000000e-18, to get exacoulombs.
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About converting exacoulombs to coulombs
An Exacoulomb (EC) equals 1e+18 coulomb(s), a scaled unit of electric charge used for exa-scale electrical work. The coulomb (C) is the SI unit of electric charge, equal to the charge carried by a steady current of one ampere flowing for one second.
Use this calculator to move between exacoulombs and coulombs accurately for homework, engineering, billing, or everyday electricity calculations. The Universal Converter uses exact unit factors, so results stay consistent across the site.