Cubic inch to Milliliter
in³
ml
Conversion History
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Quick Reference Table (Cubic inch to Milliliter)
| Cubic inch (in³) | Milliliter (ml) |
|---|---|
| 1 | 16.387064 |
| 10 | 163.87064 |
| 50 | 819.3532 |
| 100 | 1,638.7064 |
| 200 | 3,277.4128 |
| 350 | 5,735.4724 |
| 500 | 8,193.532 |
About Cubic inch (in³)
A cubic inch (in³) is the volume of a cube with 1-inch sides, equal to approximately 16.387 milliliters. In the US, it is used for engine displacement (the classic Chevrolet 350 = 350 in³ ≈ 5.7 L), small container volumes, and pharmaceutical packaging. Car engine displacement was historically described in cubic inches before the automotive industry switched to liters in the 1980s–1990s. The unit also appears in 3D printing and medical device specifications.
A classic Chevy 350 V8 engine displaces 350 in³ (≈ 5.7 L). A standard tennis ball has a volume of about 15 in³.
About Milliliter (ml)
A milliliter (mL) is one thousandth of a liter (0.001 L), exactly equal to one cubic centimeter (1 cm³). It is the most widely used small volume unit in medicine, cooking, and science. Drug dosages are prescribed in milliliters, soft drink cans are 330 mL, and laboratory pipettes measure in mL. The milliliter bridges the gap between the impractically small microliter and the everyday liter, making it the default unit for liquid measurement in clinical and domestic settings worldwide.
A standard medicine syringe holds 1–20 mL. A teaspoon is approximately 5 mL. A typical espresso shot is 30 mL.
Etymology: From Latin "mille" (thousand) + "liter". The prefix milli- denotes 10⁻³ in the SI system.
Cubic inch – Frequently Asked Questions
What is a cubic inch in milliliters?
One cubic inch equals approximately 16.387 mL. This follows from 1 inch = 2.54 cm, so 1 in³ = 2.54³ cm³ = 16.387 cm³ = 16.387 mL.
Why are car engines measured in cubic inches?
American car engines were historically described in cubic inches of displacement. The 350, 427, and 454 in³ engines are iconic V8 ratings. Most manufacturers switched to liters in the 1980s–1990s, but cubic inches remain part of classic car culture.
How many cubic inches are in a liter?
One liter equals approximately 61.024 cubic inches. A 350 in³ engine is approximately 5.74 liters.
What is cubic inch used for today?
Cubic inches are still used in the US for motorcycle and small engine displacement, small packaging volumes, and some industrial contexts. 3D printer filament usage is sometimes estimated in cubic inches.
How does cubic inch relate to fluid ounce?
One US fluid ounce equals approximately 1.805 cubic inches. One cubic inch equals about 0.554 US fluid ounces. These conversions are used in packaging design and liquid container manufacturing.
Milliliter – Frequently Asked Questions
How many milliliters are in a teaspoon?
One US teaspoon equals approximately 4.93 mL, conventionally rounded to 5 mL in cooking and medicine. An Australian/metric teaspoon is exactly 5 mL. A tablespoon is 15 mL (3 teaspoons).
Why do medicine bottles say "do not use household spoons" for dosing?
Household teaspoons and tablespoons vary wildly — from 3 to 7 mL for a "teaspoon" depending on the design. A parent dosing 2.5 mL of infant paracetamol with a large decorative spoon might accidentally give double the intended dose. Studies have shown dosing errors of 20–50% when using kitchen cutlery. Calibrated oral syringes (marked in 0.1 mL increments) eliminate this problem entirely, which is why the AAP and WHO both recommend them over any spoon for liquid medications.
How many milliliters are in a standard drink can?
A standard soft drink or beer can is typically 330 mL in Europe and 355 mL (12 US fl oz) in the United States. A 500 mL can is common for beer in many markets.
What is a standard medical dose in mL?
Common oral liquid medications are dosed at 2.5, 5, or 10 mL. Injectable medications may be 0.1–2 mL. IV fluid bags are typically 100, 250, 500, or 1,000 mL.
How many milliliters are in a fluid ounce?
One US fluid ounce equals approximately 29.57 mL. One imperial (UK) fluid ounce equals approximately 28.41 mL. The two are close but not identical — important for recipes crossing US and UK sources.