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Illuminance converter

teralux to microlux

Convert teralux (Tlx) to microlux (μlx). Use an editable illuminance converter, conversion formula, and reference table.

1e+18

1 Tlx = 1e+18 μlx

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Conversion formula

μlx = Tlx × 1e+18

One teralux equals 1e+18 microlux. Multiply your value in teralux by this factor to get microlux. For the reverse conversion, divide by the same factor.

Worked example

To convert 5 teralux:
5 × 1e+18 = 5e+18 μlx

Conversion table

teralux (Tlx)microlux (μlx)
0.011e+16
0.11e+17
11e+18
22e+18
55e+18
101e+19
252.5e+19
505e+19
1001e+20
10001e+21

About these measurements

Illuminance is luminous flux falling on a surface per unit area.

The base reference used here is the lux. One teralux is 1e+12 base units; one microlux is 0.000001 base units.

Important distinctions

One lux is one lumen per square meter.

Precision

The converter uses stored conversion factors and floating-point arithmetic. Results display up to ten significant digits, switching to scientific notation for very small or large values. Keep the precision of your original measurement when reporting results.

Common questions

How do I convert Tlx to μlx?

Multiply the quantity in Tlx by 1e+18. You can also type the value into the converter above.

Can I reverse the conversion?

Yes. Use the swap button or open the microlux to teralux converter.

Reference

NIST Guide to the SI — conversion factors and prefix conventions. SI prefixes scale units by powers of ten; the dimension-specific notes above describe the assumptions used on this page.

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