Pcr Time (Test Hours) Calculator

Enter the total number of tests, time per test, and number of testing machines into the calculator to determine the PCR test hours.

PCR Calculator

Master mix, extension time, annealing temperature, and thermocycler run time.

Master Mix

Extension Time

Annealing Temp

Run Time

PCR Master Mix Calculator

Best for building a reaction mix from reaction volume, primer stocks, template amount, and extra overage.

Common setup

2X mix + 10 uM primers

2X mix + 100 uM primers

Custom

Reaction volume per tube or well (uL) Number of reactions Extra overage percent Master mix stock concentration (X) Template volume per reaction (uL) Forward primer stock concentration (uM) Reverse primer stock concentration (uM) Desired final concentration for each primer (uM)

Related Calculators

PCR Test Hours Formula

The following formula is used to calculate the PCR test hours for a given number of tests, time per test, and number of testing machines.

H = (T * t) / M

Units: You can enter time values in hours, minutes, or seconds. The calculator converts units automatically before applying the formula.

Variables:

H is the PCR test hours
T is the total number of tests
t is the time per test (in any supported unit; the calculator converts units automatically)
M is the number of testing machines

To calculate the PCR test hours, multiply the total number of tests by the time per test, and then divide the result by the number of testing machines.

What is a PCR Test?

A PCR (Polymerase Chain Reaction) test is a type of nucleic acid amplification test (NAAT) used to detect genetic material from a pathogen. For RNA viruses (like SARS‑CoV‑2), the RNA is first converted to DNA (reverse transcription), then amplified to detectable levels. PCR/NAAT methods are generally highly sensitive, but results can be affected by when the sample is collected, the specimen type and quality, collection technique, and lab factors—so a negative test does not always rule out infection. If you have symptoms or a known exposure, follow current CDC/local health guidance and your clinician’s advice.

How to Calculate PCR Test Hours?

The following steps outline how to calculate the PCR Test Hours.

First, determine the total number of tests (T).
Next, determine the time per test (t) in hours.
Next, determine the number of testing machines (M).
Finally, calculate the PCR test hours using the formula H = (T * t) / M.
After inserting the values and calculating the result, check your answer with the calculator above.

Example Problem :

Use the following variables as an example problem to test your knowledge.

Total number of tests (T) = 1000

Time per test (t) = 0.5 hours

Number of testing machines (M) = 10