# units calculator

Posted By ewdudley, Sep 20, 2013 at 11:01 AM

Not open for further replies.
1. #1

### ewdudley Minister of Fire 2. ```NULL ```

Nov 17, 2009
1,987
309
Loc:
Cayuga County NY
Calculator plus units conversion.

http://gnuwin32.sourceforge.net/packages/units.htm

http://www.gnu.org/software/units/units.html

(If no operator, multiplication is assumed.)

Code:
```
You have: 3 ft water
You want: psi
* 1.3005825
/ 0.76888624

You have: 30000 btu / hour
You want: kW
* 8.7921321
/ 0.11373805

You have: 3000 psi 15 gpm
You want: horsepower
* 26.25
/ 0.038095238

You have: (15 cent / kWh) 40 watt
You want: dollar / day
* 0.144
/ 6.9444444

You have: (3 12) + 2
You want: 1
* 38
/ 0.026315789

You have: (8.333333 lb / gal) (1 btu / (lb degF)) 4 gpm 20 degF
You want: btu / hour
* 39999.998
/ 2.5000001e-05

You have: (111 ft2 * 120 degF) /  6 Rvalue
You want: btu / hour
* 2220
/ 0.00045045045

You have: (111 ft2 * 120 degF) / 24 Rvalue
You want: joule  / sec
* 162.65444
/ 0.0061480029

You have: (111 ft2 * 120 degF) / 24 Rvalue
You want: btu / hour
* 555
/ 0.0018018018

You have: (((1.50/2.0)^2 * pi) in^2) * (4 ft / sec)
You want: gpm
* 22.031948
/ 0.045388632

You have: 15 gpm / (((1.50/2.0)^2 * pi) in^2)
You want: feet / second
* 2.7233179
/ 0.36719914

You have: (120000 btu/hour)/((20 degF)*(500 ((min btu)/(gal hr degF))))
You want: gpm
* 12
/ 0.083333333

You have: ((10.9 gpm) / ((4 feet / second) pi))^0.5
You want: in
* 0.52753109
/ 1.8956229

You have: gallon
You want: in^3
* 231
/ 0.0043290043

```