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Vertical Retrace Time Formula

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Vertical retrace time a measurement of time related to video displays. Check FAQs
VRT=Lh⋅Th
VRT - Vertical Retrace Time?Lh - Horizontal Lines Lost?Th - One Horizontal Time?

Vertical Retrace Time Example

With values
With units
Only example

Here is how the Vertical Retrace Time equation looks like with Values.

Here is how the Vertical Retrace Time equation looks like with Units.

Here is how the Vertical Retrace Time equation looks like.

1400Edit=20Edit⋅70Edit
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HomeIcon Home » Category Engineering » Category Electronics » Category Television Engineering » fx Vertical Retrace Time

Vertical Retrace Time Solution

Follow our step by step solution on how to calculate Vertical Retrace Time?

FIRST Step Consider the formula
VRT=Lh⋅Th
Next Step Substitute values of Variables
∴ VRT=20⋅70ms
Next Step Convert Units
∴ VRT=20⋅0.07s
Next Step Prepare to Evaluate
∴ VRT=20⋅0.07
Next Step Evaluate
∴VRT=1.4s
LAST Step Convert to Output's Unit
∴VRT=1400ms

Vertical Retrace Time Formula Elements

Variables
Vertical Retrace Time
Vertical retrace time a measurement of time related to video displays.
Symbol: VRT
Measurement: TimeUnit: ms
Note: Value should be greater than 0.
Formulas to find Vertical Retrace TimeOpen Variable
Horizontal Lines Lost
Horizontal lines lost is defined as the number of times per second that a raster-scan video system transmits or displays a complete horizontal line.
Symbol: Lh
Measurement: NAUnit: Unitless
Note: Value should be greater than 0.
Formulas to find Horizontal Lines LostOpen Variable
One Horizontal Time
One horizontal time is the number of times per second that a raster-scan video system transmits or displays a complete horizontal line.
Symbol: Th
Measurement: TimeUnit: ms
Note: Value should be greater than 0.
Formulas to find One Horizontal TimeOpen Variable

Other formulas in Resolution Parameters category

​Go Number of Lines in Frame
NL=fhzlFPS
​Go Number of Frames Per Sec
FPS=fhzlNL
​Go Number of Horizontal Lines Lost during Vertical Retrace
Lh=VRTTh
​Go Aspect Ratio
AR=wh

How to Evaluate Vertical Retrace Time?

Vertical Retrace Time evaluator uses Vertical Retrace Time = Horizontal Lines Lost*One Horizontal Time to evaluate the Vertical Retrace Time, The Vertical Retrace Time formula is defined as a vertical blanking interval or the vertical sync signal, vertical retrace is a measurement of time related to video displays. Vertical Retrace Time is denoted by VRT symbol.

How to evaluate Vertical Retrace Time using this online evaluator? To use this online evaluator for Vertical Retrace Time, enter Horizontal Lines Lost (Lh) & One Horizontal Time (Th) and hit the calculate button.

FAQs on Vertical Retrace Time

What is the formula to find Vertical Retrace Time?
The formula of Vertical Retrace Time is expressed as Vertical Retrace Time = Horizontal Lines Lost*One Horizontal Time. Here is an example- 1.4E+6 = 20*0.07.
How to calculate Vertical Retrace Time?
With Horizontal Lines Lost (Lh) & One Horizontal Time (Th) we can find Vertical Retrace Time using the formula - Vertical Retrace Time = Horizontal Lines Lost*One Horizontal Time.
Can the Vertical Retrace Time be negative?
No, the Vertical Retrace Time, measured in Time cannot be negative.
Which unit is used to measure Vertical Retrace Time?
Vertical Retrace Time is usually measured using the Millisecond[ms] for Time. Second[ms], Microsecond[ms], Nanosecond[ms] are the few other units in which Vertical Retrace Time can be measured.
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