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Very simple program for quick and easy unit conversions also work with any HP calculator that have Labels.
This is very useful when you need to convert units often in your work or project.

Procedure:
1. STO 0 for your desire Unit Constant
2. Remember LBL A for Multiply and LBL B for Divide

Example: Convert between Mile and Kilometer
(1 mile = 1.60934 kilometer)

1.60934 STO 0 (store constant)

123 mile to kilometer > 123 > A > 197.95 kilometer
123 kilometer to mile > 123 > B > 76.43 mile

Program:

Code:

LBL A (Multiply)

RCL 0

x

RTN

LBL B (Divide) 

RCL 0

/

RTN

Gamo

(04-03-2018 10:29 AM)Gamo Wrote: [ -> ]1.60934 STO 0 (store constant)

The final 4 in the constant has been left out:

1.609344

In case you ever forget it, just do the following:

45 ENTER 450 1/x - g √x g √x g √x

Not that this would really make a difference :-)

This is not a simple program version as state in this topic but good to have to convert everyday use units for

C → F
f' in'' → cm (Feet Inch to Centimeter)
lb → kg

Program:

Code:

*LBL A    //  C→F

F?1

GTO 1

ENTER

1.8

x

32

+

RTN

*LBL 1

ENTER

32

-

1.8

/

GSB D

RTN

*LBL B    //  (Feet Inch→Centimeter)

F?1

GTO 2

X<>Y

12

x

+

2.54

x

RTN

*LBL 2

ENTER

30.48

/

ENTER

INT

STO 1

-

12

x

RCL 1

GSB D

R/S

X<>Y

RTN

*LBL C    //  (lb→ kg)

ENTER

,45359237

F?1

GTO 3

x

RTN

*LBL 3

/

GSB D

RTN

*LBL D    // Clear Flag 1

CF?1

RTN

*LBL E    //  Reverse Unit

SF?1

RTN

Example: Switch to USER mode f USER > D (Clear Flag)

LBL E for Unit Reverse

37C > F?
37 A > 98.6

100F > C?
100 E > A > 37.78

160 cm > ft' in'' ?
160 > E > B > 5 > R/S > 2.99 (160 cm approximate to 5 Feet 3 Inches)

6' 5'' > cm ?
6 ENTER 5 > B > 195.58

64 kg > lb?
64 > E > C > 141.10

Gamo

Gamo

Gerson W. Barbosa

Gamo