Convert electric charge between coulombs, millicoulombs, kilocoulombs, microcoulombs, nanocoulombs, and picocoulombs in either direction.

Enter an electric charge, choose its unit and the result unit. Positive, negative and zero charge are supported.

C means coulomb. The sign of the charge is preserved.

Assumptions Assumptions
  • Pure unit conversion for electric charge using SI prefixes; no physics formulas (e.g., Q = C·V) are applied.
  • µ denotes micro (10⁻⁶), m = milli (10⁻³), k = kilo (10³), n = nano (10⁻⁹), and p = pico (10⁻¹²).
  • Outputs are rounded to 6 decimal places, using scientific notation for very large/small values.
  • Based on SI definitions: 1 C = 1 A·s; only unit scaling is performed.
When to Use This Calculator
  • Converting charge measurements from lab instruments between C, mC, µC, nC, and pC.
  • Interpreting datasheets and test reports that list charge in different SI-scaled units.
  • Moving between capacitor charge quantities commonly expressed in µC and circuit calculations expressed in C.
Input Definitions
  • Electric charge — enter a signed value and choose C, mC, kC, µC, nC, or pC.
  • Result unit — choose the desired charge unit, then select Calculate.
  • Unit identities — 1 C = 10⁶ µC = 10³ mC = 10⁹ nC = 10¹² pC.

C to Micro C Formula

The following formulas convert the numerical charge value q between coulombs (C) and microcoulombs (µC). The subscript names the unit in which q is expressed.

qμC = 10⁶ qC
qC = (qμC) / (10⁶)
  • 1 C = 106 µC.
  • 1 mC = 10-3 C.
  • 1 kC = 103 C.
  • 1 nC = 10-9 C.
  • 1 pC = 10-12 C.

How do you convert C to µC? Multiply the value in coulombs by 106 (one million) to get microcoulombs.

How do you convert µC to C? Divide the value in microcoulombs by 106, or multiply by 10-6, to get coulombs.

C to Micro C Conversion Table

Coulombs (C) to Microcoulombs (µC)
Coulombs (C) Microcoulombs (µC)
0.0000011
0.0000110
0.0001100
0.0011000
0.0110000
0.1100000
0.25250000
0.5500000
0.75750000
11000000
22000000
55000000
1010000000
5050000000
100100000000
* SI scaling: 1 C = 1,000,000 µC.

Example Problem

Convert 0.007 C to microcoulombs (µC).

Multiply the numerical value in C by 106.

0.007 C = (0.007 × 106) µC = 7000 µC