Terawatt to Milliwatt Converter
Convert terawatts to milliwatts (TW to mW) instantly with this free online power converter. Enter any value in the Terawatt field and get the equivalent in Milliwatt immediately. This converter handles any quantity — from tiny fractions to large numbers — with full precision. No signup, no ads in the widget, and the conversion runs entirely in your browser for instant results.
The conversion factor is exact: 1 TW = 1e+15 mW. To convert terawatts to milliwatts, multiply your Terawatt value by 1e+15. For example, 10 TW = 1e+16 mW. You can also reverse the calculation: 1 mW = 1e-15 TW.
Quick conversion table
| Terawatt (TW) | Milliwatt (mW) |
|---|---|
| 1 TW | 1e+15 mW |
| 5 TW | 5e+15 mW |
| 10 TW | 1e+16 mW |
| 25 TW | 2.5e+16 mW |
| 50 TW | 5e+16 mW |
| 100 TW | 1e+17 mW |
Use the swap button to reverse the direction, or choose a different unit from the dropdown menus to convert within the power category.
Formula
Terawatt to Milliwatt conversion: 1 TW = 1e+15 mW milliwatts = terawatts × 1e+15 1 mW = 1e-15 TW terawatts = milliwatts × 1e-15
Example
Example: Convert 10 TW to mW: 10 TW × 1e+15 = 1e+16 mW So, 10 TW is about 1e+16 mW. To convert back, multiply by 1e-15: 1e+16 mW × 1e-15 = 10 TW.
How to Use
- Enter the value you want to convert in the Terawatt field
- The result in Milliwatt appears instantly below
- Use the dropdown menus to change units if needed
- Click 'Swap Units' to reverse the conversion direction
- Copy the result or adjust the input for a new conversion
Frequently Asked Questions
How do I convert terawatts to milliwatts?
Enter the value in Terawatt (TW) in the 'From' field. The equivalent in Milliwatt (mW) appears instantly in the 'To' field. The converter uses precise conversion factors and updates in real time as you type.
What is the formula to convert TW to mW?
1 TW = 1e+15 mW, so milliwatts = terawatts × 1e+15. To convert back, 1 mW = 1e-15 TW. The full formula and a worked example are shown on this page.
How many milliwatts are in one Terawatt?
1 TW = 1e+15 mW.
Is this Terawatt to Milliwatt converter free?
Yes, completely free with no signup, no limits, and no ads in the converter widget. You can convert as many values as you need. The tool runs entirely in your browser, so your data never leaves your device.
Can I convert milliwatts back to terawatts?
Yes. Click the 'Swap Units' button to reverse the direction. You can also use the dropdown menus to select any other power unit for either field.
How accurate is the TW to mW conversion?
The converter uses high-precision conversion factors (up to 8 decimal places). Results are displayed with up to 6 decimal places, with trailing zeros removed for readability. For scientific or engineering work, always verify with official standards.