Ever needed to compare a tiny fuel‑pump rating in the U.S. with a fluid‑flow spec from a British‑made device? The mismatch often shows up as cubic inches per hour versus pints per second. Converting between them lets you speak the same language, avoid costly mistakes, and keep projects moving.

Quick Conversion Fact

One cubic inch per hour (in³/h) equals 0.000009620 pint per second (pnt/s). In other words, multiply the value in in³/h by 0.000009620 to get the flow rate in pnt/s.

Volume Flow Rate: The Common Ground

Both units belong to the volume flow rate measure. This measure tells us how much space‑filled material passes a point in a given time. Whether you’re moving water, oil, or air, the underlying concept stays the same.

Cubic Inch Per Hour (in³/h)

• Uses the imperial cubic inch for volume.
• Time is expressed in hours.
• Common in small‑scale equipment specs, especially in the United States.

Pint Per Second (pnt/s)

• Relies on the U.S. liquid pint (≈ 473.176 mL).
• Time is measured in seconds.
• Favoured in laboratory and beverage‑industry calculations where quick, short‑interval measurements matter.

Deriving the Relationship

The bridge between the two units is built in two steps:

1. Convert cubic inches to pints.
   1 in³ = 0.034632 pint (because 1 pint ≈ 28.875 in³).
2. Convert hours to seconds.
   1 hour = 3,600 seconds.

Combine the steps:

1 in³/h = (0.034632 pint) ÷ 3,600 s = 0.000009620 pint/s

Worked Example

Suppose a pump delivers 250 in³/h. How many pints per second is that?

1. Multiply by the conversion factor:
   250 × 0.000009620 = 0.002405 pnt/s
2. Result: 0.002405 pint per second.

That tiny flow equals roughly 2.4 mL each second—useful for precision dosing.

When This Conversion Matters

• Industrial maintenance: Aligning legacy U.S. pump data with modern metric‑friendly control systems.
• Food & beverage: Matching ingredient‑feed rates from older equipment to new bottling lines.
• Laboratory work: Converting supplier specs (often in in³/h) to experiment‑ready units (pnt/s).
• DIY projects: Ensuring a garden sprayer’s flow matches a water‑conservation plan.

Cubic Inch Per Hour to Pint Per Second Conversion Table

Each row applies the same rule: multiply the cubic‑inch‑per‑hour value by 0.000009620 to obtain pints per second.

Key Takeaway

Remember the simple factor: 1 in³/h ≈ 0.000009620 pnt/s. With it, you can instantly translate small‑scale flow specs into a more intuitive, second‑based unit.

Ready to apply the conversion to your own data? Plug the factor into your spreadsheet or calculator and watch the numbers line up.