Convert ratios to stop (photographic)s

0EV
≈ Approximate 1 × ≈ 0 EV
More converter tools

Readable results

Ranges, ± tolerances, feet/inches and clock durations work in the value field.

Unit picker

Export this result

Show this value in all 10 ratio & decibels units
  • Ratios × 1
  • Decibel (power)s dB 0
  • Decibel (amplitude)s dB 0
  • Bels B 0
  • Nepers Np 0
  • Decades dec 0
  • Octaves oct 0
  • Semitones st 0
  • Cents ¢ 0
  • Stop (photographic)s EV 0

Every row is Ratio (×) converted through the ratio, in exact rational arithmetic.

How to convert ratios to stop (photographic)s

Convert through a plain ratio: ratio → ratio → stop (photographic). Logarithmic units cannot be converted by multiplying alone.

Ratio: The plain multiplier every logarithmic unit here converts through. Read a decibel figure as an encoding of this number.

Stop (photographic): One stop doubles the light. Identical arithmetic to the octave.

Ratio to Stop (photographic) conversion table

Ratios (×) Stop (photographic)s (EV)
1 × 0
2 × 1
3 × 1.584 962 5
5 × 2.321 928 1
10 × 3.321 928 1
20 × 4.321 928 1
25 × 4.643 856 2
50 × 5.643 856 2
100 × 6.643 856 2
250 × 7.965 784 3
500 × 8.965 784 3
1000 × 9.965 784 3

Stop (photographic) to Ratio conversion table

Stop (photographic)s (EV) Ratios (×)
0 EV 1
1 EV 2
2 EV 4
3 EV 8
6 EV 64
10 EV 1024
20 EV 1 048 576
30 EV 1 073 741 800
40 EV 1 099 511 600 000
60 EV 1.1529215e+18
80 EV 1.2089258e+24
100 EV 1.2676506e+30

Frequently asked

How many stop (photographic)s are in a ratio?

One ratio equals 0 stop (photographic)s (× → EV).

How do you convert ratios to stop (photographic)s?

Convert through a plain ratio: ratio → ratio → stop (photographic). Logarithmic units cannot be converted by multiplying alone.

What is 1 EV in ratios?

One stop (photographic) is 2 ratios.

What is 10 × in EV?

10 × = 3.321 928 1 EV.

What exactly is a ratio?

The plain multiplier every logarithmic unit here converts through. Read a decibel figure as an encoding of this number.

What exactly is a stop (photographic)?

One stop doubles the light. Identical arithmetic to the octave.

Related conversions

Settings

Theme

System follows your operating system and changes with it.

Text size
High contrast

Maximises text and border contrast and removes the grid background.

Graph-paper background

Round to
Notation
Thousands separators
Decimal mark
Nearest fraction

Shows the result as the nearest tape-measure fraction, with the error it costs.


Accessibility & interaction
Reduce motion Stops interface animations even when the operating system does not.
Underline links Keeps links visually distinct without relying on colour.
Larger touch targets Makes buttons and form controls easier to tap.
Shorter reading lines Limits article width for easier scanning.
Monochrome display Removes colour as an information cue.
Always-visible focus Makes the keyboard focus ring persistent and stronger.
Verbose screen-reader results Announces the complete conversion equation.
Sticky action bars Keeps converter and calculator actions within reach.
Select values on focus Replaces a value immediately when you start typing.
Left-handed mobile layout Moves key mobile actions toward the left thumb.

Your data

Settings, recent conversions and favourites live in this browser only. Nothing is sent anywhere.

Offline library