Terasievert is 1000000000000 sievert units.
Terasievert to Nanosievert
Convert Terasievert (TSv) to Nanosievert (nSv) instantly. Free online radiation converter with formulas, tables and examples.
Reserved for a responsive leaderboard above the conversion details.
Professional calculator style
World-scale conversion engine
30+ categories
6,500+ units
Instant results
Offline ready
Converter
Radiation Converter
Convert radioactivity, absorbed dose, and equivalent dose units by compatible radiation family.
Context values
Some unit families need one extra value for a physically accurate result.
Nanosievert is 1e-9 sievert units.
nSv = TSv × 1e+21
Results update instantly for Terasievert to Nanosievert conversions.
Reserved above the conversion cards and below the converter.
Formula
1 Terasievert = 1e+21 Nanosievert
nSv = TSv × 1e+21
TSv = nSv ÷ 1e+21
Conversion table
| 1 TSv | 1e+21 nSv |
| 2 TSv | 2e+21 nSv |
| 5 TSv | 5e+21 nSv |
| 10 TSv | 1e+22 nSv |
| 20 TSv | 2e+22 nSv |
| 50 TSv | 5e+22 nSv |
| 100 TSv | 1e+23 nSv |
Related conversions
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many Nanosieverts are in one Terasievert?
One Terasievert equals 1e+21 Nanosieverts.
How do I convert Terasievert to Nanosievert?
Multiply the number of Terasieverts by 1e+21 to get Nanosieverts. To go the other way, multiply Nanosieverts by 1e-21 (or divide by 1e+21) to get Terasieverts.
Is this conversion exact?
Yes. This conversion uses the exact defined relationship between Terasievert and Nanosievert, so the result shown is mathematically precise (rounded only for display).
When is Terasievert to Nanosievert conversion commonly used?
It is commonly used in nuclear medicine, radiation safety, health physics, and scientific research involving radioactivity and radiation dose.
Reserved between the FAQ and the article so the page stays balanced.
About this conversion
Terasievert and Nanosievert 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+21 Nanosieverts (equivalently 1 Nanosievert = 1e-21 Terasieverts), so results stay accurate for nuclear medicine, radiation safety, health physics, and scientific research.