Terasievert is 1000000000000 sievert units.
Terasievert to Millisievert
Convert Terasievert (TSv) to Millisievert (mSv) instantly. Free online radiation converter with formulas, tables and examples.
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Convert radioactivity, absorbed dose, and equivalent dose units by compatible radiation family.
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Millisievert is 0.001 sievert units.
mSv = TSv × 1e+15
Results update instantly for Terasievert to Millisievert conversions.
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Formula
1 Terasievert = 1e+15 Millisievert
mSv = TSv × 1e+15
TSv = mSv ÷ 1e+15
Conversion table
| 1 TSv | 1e+15 mSv |
| 2 TSv | 2e+15 mSv |
| 5 TSv | 5e+15 mSv |
| 10 TSv | 1e+16 mSv |
| 20 TSv | 2e+16 mSv |
| 50 TSv | 5e+16 mSv |
| 100 TSv | 1e+17 mSv |
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Frequently asked questions
How many Millisieverts are in one Terasievert?
One Terasievert equals 1e+15 Millisieverts.
How do I convert Terasievert to Millisievert?
Multiply the number of Terasieverts by 1e+15 to get Millisieverts. To go the other way, multiply Millisieverts by 1e-15 (or divide by 1e+15) to get Terasieverts.
Is this conversion exact?
Yes. This conversion uses the exact defined relationship between Terasievert and Millisievert, so the result shown is mathematically precise (rounded only for display).
When is Terasievert to Millisievert conversion commonly used?
It is commonly used in nuclear medicine, radiation safety, health physics, and scientific research involving radioactivity and radiation dose.
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About this conversion
Terasievert and Millisievert are units used in the radiation family of measurements. Both units measure equivalent radiation dose (biological risk-weighted dose). This converter uses the precise relationship 1 Terasievert = 1e+15 Millisieverts (equivalently 1 Millisievert = 1e-15 Terasieverts), so results stay accurate for nuclear medicine, radiation safety, health physics, and scientific research.