Volumetric Flow Rate Unit Conversion Tool
Whether you're an engineer designing piping systems, a chemist controlling reaction flow rates, a barista calibrating espresso extraction parameters, or a homeowner calculating faucet flow—converting volumetric flow rate units is essential. However, the landscape is cluttered: from scientific standards like m³/s, to kitchen recipes using tsp/s, industrial norms like gal/min and ft³/h, and countless prefixes and conversion factors—making manual calculations highly error-prone.
To solve this, we proudly introduce an all-in-one Volumetric Flow Rate Converter, supporting instant, high-precision conversion among the following 42 commonly used flow units:
Metric Flow Units:
- mm³/s, cm³/s, ml/s, cl/s, dl/s, l/s, l/min, l/h
- kl/s, kl/min, kl/h
- m³/s, m³/min, m³/h
- km³/s
U.S. Kitchen & Liquid Flow Units:
- tsp/s, Tbs/s, fl-oz/s, cup/s, pnt/s, qt/s, gal/s
(and their /min and /h variants)
Cubic Imperial/U.S. Flow Units:
- in³/s, ft³/s, yd³/s
(and their /min and /h variants)
Just enter a value, select the source and target units, and get a high-precision result instantly! Make complex flow conversions simple, efficient, and error-free.
🔁 Core Conversion Formulas
1. Metric Base (referenced to cubic meters per second, m³/s)
| Relationship | Conversion |
|---|---|
| 1 m³ = 1,000 L | → 1 m³/s = 1,000 L/s |
| 1 L = 1,000 mL = 1,000 cm³ | → 1 L/s = 1,000 cm³/s |
| 1 kl = 1,000 L | → 1 kl/s = 1 m³/s |
| Time: 1 min = 60 s, 1 h = 3,600 s |
Thus:
- L/min = L/s × 60
- m³/h = m³/s × 3,600
2. U.S. Liquid Units (based on U.S. gallon)
| Unit | Equivalent in Liters (L) |
|---|---|
| 1 tsp (teaspoon) | ≈ 0.00492892 L |
| 1 Tbs (tablespoon) | = 3 tsp ≈ 0.0147868 L |
| 1 fl-oz (fluid ounce) | ≈ 0.0295735 L |
| 1 cup | = 8 fl-oz ≈ 0.236588 L |
| 1 pnt (pint) | = 2 cups ≈ 0.473176 L |
| 1 qt (quart) | = 2 pints ≈ 0.946353 L |
| 1 gal (gallon) | = 4 quarts ≈ 3.78541 L |
💡 All /s, /min, and /h units are derived by multiplying the base volume by the reciprocal of time.
3. Cubic Imperial Units
| Unit | Equivalent in Cubic Meters (m³) |
|---|---|
| 1 in³ | (0.0254)³ m³ ≈ 1.6387×10⁻⁵ m³ |
| 1 ft³ | 1,728 in³ ≈ 0.0283168 m³ |
| 1 yd³ | 27 ft³ ≈ 0.764555 m³ |
📊 Common Flow Rate Reference Table
(Based on 1 L/s)
| Unit | Equivalent Value (relative to 1 L/s) |
|---|---|
| Metric | |
| mm³/s | 1,000,000 |
| cm³/s | 1,000 |
| ml/s | 1,000 |
| cl/s | 100 |
| dl/s | 10 |
| L/s | 1 |
| L/min | 60 |
| L/h | 3,600 |
| m³/s | 0.001 |
| m³/min | 0.06 |
| m³/h | 3.6 |
| kl/s | 0.001 |
| U.S. Liquid | |
| tsp/s | ≈ 202.884 |
| Tbs/s | ≈ 67.628 |
| fl-oz/s | ≈ 33.814 |
| cup/s | ≈ 4.227 |
| pnt/s | ≈ 2.113 |
| qt/s | ≈ 1.057 |
| gal/s | ≈ 0.264172 |
| gal/min | ≈ 15.850 |
| gal/h | ≈ 951.0 |
| Cubic Imperial | |
| in³/s | ≈ 61.0237 |
| ft³/s | ≈ 0.0353147 |
| ft³/min | ≈ 2.11888 |
| ft³/h | ≈ 127.133 |
| yd³/s | ≈ 0.001308 |
| yd³/h | ≈ 4.7086 |
✅ Practical Examples
- Household faucet flow ≈ 0.1–0.2 L/s (i.e., 6–12 L/min)
- Automotive fuel pump ≈ 100 L/h
- Industrial water pump ≈ 100 m³/h
- HVAC airflow often uses cfm (ft³/min); 1 cfm ≈ 0.4719 L/s
✨ Tool Advantages
- 42 units covered: spans scientific, engineering, culinary, industrial, and hydraulic applications
- Smart U.S./Imperial distinction: defaults to U.S. liquid units, with optional UK gallon support
- Complete time granularity: supports /s, /min, and /h for all applicable units
- High-precision engine: uses international standard coefficients (e.g., 1 gal = 3.785411784 L)
- Completely free · No ads · No registration required
- Responsive interface: works smoothly on mobile phones, tablets, and desktop computers
🌐 Try It Now!
💧 Stop letting flow unit conversions hold you back!
Whether you're designing irrigation systems, tuning chemical reactors, reading equipment manuals, or replicating overseas recipes—this tool is your ultimate assistant.
⏱️ Take precise control of every drop in motion—try it today!