Volumetric flow rate.
Tablespoon per Days to Gallon per Seconds Converter — tbsp/d to gal/s
Convert Tablespoon per Days (tbsp/d) to Gallon per Seconds (gal/s) using the exact conversion factor (1 tablespoon per days = 4.521123e-8 gallon per seconds). See the formula, worked examples, and conversion table.
Tablespoon per Days to Gallon per Seconds converter
Converter
Flow Rate Converter
Convert volumetric flow rates across metric, US, imperial, industrial, and scientific units.
Context values
Some unit families need one extra value for a physically accurate result.
Volumetric flow rate.
Result = input x 1.71143111e-10 / 0.003785411784.
Flow rate uses cubic meters per second as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Tablespoon per Days to Gallon per Seconds
Tablespoon per Days and Gallon per Seconds both measure volumetric flow rate — how much volume passes a point over time — used to size pipes and pumps, monitor river or stream discharge, control industrial processes, and set medical infusion rates. Both are volumetric flow rate units.
Formula
gallon per seconds = tablespoon per days × 4.521123e-8
This factor comes from each unit's defined relationship to the category's base unit: 1 tablespoon per days equals 1.711431e-10 base units, and 1 gallon per seconds equals 0.003785411784 base units, so dividing one by the other gives the direct tablespoon per days-to-gallon per seconds factor of 4.521123e-8.
Simple example
1 tbsp/d × 4.521123e-8 = 4.521123e-8 gal/s
1 tablespoon per days = 4.521123e-8 gallon per seconds.
Real-world example
60 tbsp/d × 4.521123e-8 = 0.0000027127 gal/s
60 tablespoon per days = 0.0000027127 gallon per seconds.
Conversion table
| Tablespoon per Days (tbsp/d) | Gallon per Seconds (gal/s) |
|---|---|
| 0.1 tbsp/d | 4.521123e-9 gal/s |
| 1 tbsp/d | 4.521123e-8 gal/s |
| 10 tbsp/d | 4.521123e-7 gal/s |
| 60 tbsp/d | 0.0000027127 gal/s |
| 100 tbsp/d | 0.0000045211 gal/s |
| 1,000 tbsp/d | 0.0000452112 gal/s |
Reverse conversion: Gallon per Seconds to Tablespoon per Days
4.521123e-8 gal/s × 22118400 = 1.00000007 tbsp/d
4.521123e-8 gallon per seconds = 1.00000007 tablespoon per days.
tablespoon per days = gallon per seconds × 22118400
For a page dedicated to this direction, see Gallon per Seconds to Tablespoon per Days.
Understanding the Tablespoon per Days (tbsp/d)
Volumetric flow rate.
Understanding the Gallon per Seconds (gal/s)
Volumetric flow rate.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many gallon per seconds are in 1 tablespoon per days?
1 tablespoon per days equals 4.521123e-8 gallon per seconds, using the exact defined conversion factor rather than an estimate.
How do I convert tablespoon per days to gallon per seconds?
Multiply the tablespoon per days value by 4.521123e-8. The converter above does this instantly to whatever precision you set.
How do I convert gallon per seconds back to tablespoon per days?
Use the reverse factor: 1 gallon per seconds equals 22,118,400 tablespoon per days. You can also use the swap control in the converter above to flip the direction instantly.
What is a tablespoon per days?
Tablespoon per Days (tbsp/d) is a unit of flow rate.
What is a gallon per seconds?
Gallon per Seconds (gal/s) is a unit of flow rate.
Is the tablespoon per days to gallon per seconds conversion exact?
Yes. Both tablespoon per days and gallon per seconds are defined by fixed standards rather than physical artifacts, so the factor of 4.521123e-8 used above is exact to as many digits as you choose to display.
What's the difference between volumetric and mass flow rate?
Volumetric flow rate measures the volume of fluid passing a point per unit time (for example, liters per second). Mass flow rate measures the mass instead. For a fluid of constant density the two are directly proportional, but for compressible fluids like gases, mass flow is often the more meaningful quantity.