Tape
CALCULATED INDUSTRIES
®
M–R/C
POCKET
HANDYMAN
®
IV
FEET–INCH–METRIC CALCULATOR
AC
+/–
π
Per
Arc
1/
x
Wt/Vol
M–
Ft-In
x
2
2
÷
8
3
0
4
5
6
79
•
1
=
+
+
On/C
–
Off
Inch
Feet
/
Yds
cm
mm
Cu Sq
m
M+
Rcl
%
Conv
√
__
€
Weight
Circ
FEET INCH
POCKET HANDYMAN
®
IV
For Today’s Woodworkers, Hobbyists and
Do–It–Yourselfers
User’s Guide
Introducing Pocket Handyman IV . . . . 3
Key Definitions . . . . . . . . . . . . . . . . . . .4
Operating Basics . . . . . . . . . . . . . . . .11
Power On & Off . . . . . . . . . . . . .11
Basic Math Operations . . . . . . . .11
Memory Functions . . . . . . . . . . .14
Fractional Settings . . . . . . . . . . . .16
“Paperless Tape” Feature . . . . . . .18
Using the Pocket Handyman IV . . . . .20
Entering Dimensions . . . . . . . . . .20
Linear Conversions . . . . . . . . . . .20
Square & Cubic Dimensions . . . .21
Square Conversions . . . . . . . . . .22
Cubic Conversions . . . . . . . . . . .22
Estimating Materials . . . . . . . . . .23
Area Calculations . . . . . . . . . . . .26
Volume Calculations . . . . . . . . . .28
Volume & Weight Calculations . .33
Squaring Up . . . . . . . . . . . . . . . .34
Common Rafter Length . . . . . . . .35
Circular Solutions . . . . . . . . . . . .36
Appendix . . . . . . . . . . . . . . . . . . . . . .38
Area Formulas . . . . . . . . . . . . . .38
Surface Area and Volume Formulas .39
Calculator Information . . . . . . . .40
Product Specifications . . . . . . . . .42
Warranty . . . . . . . . . . . . . . . . . . .43
TABLE OF CONTENTS
2 – Pocket Handyman
®
IV
Designed for today’s busy woodwork-
ers, hobbyists and do-it-yourselfers, the
new Pocket Handyman IV is so simple
to use, even first-time users will find it
easy to solve all kinds of dimension-
related problems.
◆ Solves dimensional math
◆ Works in and converts between all
common dimensional units
◆ Finds square & rectangular areas,
cubic volumes, circular areas and cir-
cumferences
◆ Weight per volume function
◆ Material estimations
◆ Paperless tape function
◆ And much, much more!
It also works as a standard math calcu-
lator with memory and percent func-
tions plus battery-saving auto shut-off.
INTRODUCING
POCKET HANDYMAN
®
IV
User’s Guide – 3
[+] [–] [x] [÷] [=]
Arithmetic operation keys.
[%]
Four-function percent key.
0 – 9 and [ • ]
Digits used for entering numbers.
[Off] — Off Key
Turns power off.
[On/C] — On/Clear Key
Turns power on. If on, pressing once
clears the last entry and the display.
Pressing twice clears all temporary reg-
isters (stored values).
[Conv]
Used with the dimensional keys to con-
vert between dimensions. Dimensions
can only be converted within the same
convention (i.e., linear, square or
cubic). Can also access special func-
tions when used with other keys.
[ ] — Square Root
Used to find the square root of a num-
ber. The calculator will display the
word “ERROR” if you try to find the
square root of a linear or volume value.
KEY
DEFINITIONS
4 – Pocket Handyman
®
IV
[Conv] [ ] — x2 Function
Finds the square of the displayed num-
ber. The calculator will display an error
if you try to find the square of an area
or volume value.
[M+] — Memory Plus
Stores or adds the displayed number to
memory.
[Conv] [M+] — Memory Minus
Subtracts the displayed value from
memory.
[Rcl] — Recall Key
Recalls values stored in any register
(i.e., [Rcl] [M+] displays the value stored
in memory).
[Conv] [Rcl] — Memory Clear
Clears the value in memory without
changing the display.
Dimension Keys
[Yds] — Yards Key
This is an entry and conversion key.
You can enter whole or decimal num-
bers. To convert a displayed value to
yards, press [Conv] [Yds].
User’s Guide – 5
[Feet] — Feet Key
This is an entry and conversion key.
You can enter whole or decimal num-
bers. You can also use this key to enter
values in feet-inch-fraction format: (2
[Feet] 1 [Inch] 1 [/] 2
). To convert a dis-
played value to feet, press [Conv] [Feet].
Repeated presses toggle between feet-
inches and decimal feet formats.
[Inch] — Inch Key
This is an entry and conversion key
(when used with the [Conv] key). You
can enter whole or decimal numbers.
You can also use this key with the [/]
key to enter fractional inch values. For
example to enter 3- 3/4 inches, press 3
[Inch] 3 [/] 4
. To convert a displayed
value to inches, press [Conv] [Inch].
Repeated presses toggle between frac-
tional inch and decimal inch formats.
[/] — Fraction Key
Enters a fraction. To enter a fraction,
enter the numerator, the fraction key [/]
and then the denominator: 1 [/] 2.
Fractions can be entered as proper (1
or less – 1/2, 1/8, 1/16) or improper
(greater than 1 – 3/2, 65/64). If the
denominator (the bottom number) is
not entered, then the currently selected
fractional denominator is used. [Rcl] [/]
6 – Pocket Handyman
®
IV
displays the current fractional denomi-
nator and accesses the fractional setting
mode. See the “Fraction Setting” section
for more information.
[Cu] — Cubic Key
Used with a dimension key (feet, inch-
es, yards, meters, etc.) to identify a vol-
ume dimension. Example: 5 [Cu] [Yds].
[Sq] — Square Key
Used with a dimension key (feet, inch-
es, yards, meters, etc.) to identify an
area dimension. Example: 10 [Sq] [Feet].
[m] — Meters Key
This is an entry and conversion key
(when used with the [Conv] key). You
can enter decimal meters or convert a
displayed dimension to decimal meters.
[cm] — Centimeters Key
This is an entry and conversion key
(when used with the [Conv] key). You
can enter decimal centimeters or con-
vert a displayed dimension to decimal
centimeters.
[mm] — Millimeters Key
This is an entry and conversion key
(when used with the [Conv] key). You
can enter decimal millimeters or con-
vert a displayed dimension to decimal
millimeters.
User’s Guide – 7
[Weight] — Weight Key
Enters or converts (a volume value) to
tons, pounds, metric tons or kilograms.
Repeated presses will cycle through
these units.
[Conv] [%] — Weight per Volume
Enters or converts the Weight per
Volume setting as Tons/Yard
3
,
Lbs/Yd
3
, Lb/Ft
3
, Metric Ton/m
3
or
kg/m
3
. Repeated presses will cycle
through these settings.
[Circ] — Circle Key
Used to enter a circular diameter and
find the area and circumference.
Pressing this key displays values in the
following order: 1) diameter, 2) area 3)
circumference.
[Conv] [Circ] — Arc Length
Used to find the arc length based on an
entered diameter and angle.
Special Functions
[Conv] [÷]
Reciprocal, or 1/x function.
[Conv] [x] — All Clear
Clears all values including memory.
Resets to default settings.
8 – Pocket Handyman
®
IV
[Conv] [+] — Pi (π)
Internal constant = 3.141593.
[Conv] [–] — Change Sign Function
Toggles th e sign of a value between
positive and negative values.
[Rcl] [=] — Paperless Tape Feature
Accesses the paperless tape mode. See
the “Paperless Tape” section for more
information.
[Rcl] [x] — Metric Mode Toggle
Toggles between Imperial and Metric
defaults for the weight per volume fac-
tor and the weight key. When you are
in Metric Mode, any value in meters
will be limited to three decimal places
to the right. To verify which mode you
are in, do an all clear ([Conv] [x]), then
press [Rcl] [Weight]. If the displayed unit
of measurement is kilograms, you are
in Metric Mode. If the displayed unit is
tons, you are in Imperial Mode.
[Conv] [•] — Per Unit Function
Used to calculate total material cost, if
you multiply the total amount of mate-
rial by the per unit cost of the item. For
example, to find the cost of 39.7 square
yards of carpet at $11.75 per square
yard, enter 39.7 [Sq] [Yds] [x] 11.75
[Conv] [•]
which will give you $466.48.
User’s Guide – 9
Power On & Off
Turn the calculator on by pressing the
[On/C] key. To turn it off, press the
[Off] key.
Auto Shut-Off
The calculator will turn itself off if it is
not used within 8-10 minutes.
Basic Math Operations
Your calculator uses standard chaining
logic which simply means that you
enter your first value, the operator (+,
–, x, ÷), the second value and then the
equals sign (=).
3 [+] 2 [=] 5
3 [–] 2 [=] 1
3 [x] 2 [=] 6
3 [÷] 2 [=] 1.5
This feature also makes the calculator
simple to use for dimensional math, as
shown in the following examples:
OPERATING
BASICS
10 – Pocket Handyman
®
IV
Adding Dimensions
Add 7 feet 3-1/2 inches to 11 feet 4 inches:
7 [Feet] 3 [Inch] 1[/] 2 [+]
11 [Feet] 4 [Inch] [=] 18 FT 7-1/2 IN
Add 11 inches to 2 feet 1 inch:
11 [Inch] [+] 2 [Feet] 1 [Inch] [=] 36 IN
Add 2 feet 1 inch to 11 inches:
2 [Feet] 1 [Inch] [+]
11 [Inch] [=] 3 FT 0 IN
Note: The format of the first value you enter
determines the format of the answer.
However, with the [Conv] key you can
change to any format you want, provided
that you maintain convention.
Subtracting Dimensions
Subtract 3 feet from 11 feet 7-1/2 inches:
11 [Feet] 7 [Inch] 1 [/] 2
[–] 3 [Feet] =] 8 FT 7-1/2 IN
Subtract 32 inches from 81 inches:
81 [Inch] [–] 32 [Inch] [=] 49 IN
Multiplying Dimensions
Multiply 5 feet 3 inches by 11 feet 6-1/2 inches:
5 [Feet] 3 [Inch] [x]
11 [Feet] 6 [Inch] 1 [/] 2 [=] 60.59375 SQ FT
User’s Guide – 11
Multiply 2 feet 7 inches by 10 :
2 [Feet] 7 [Inch] [x] 10 [=] 25 FT 10 IN
Dividing Dimensions
Divide 30 feet 4 inches by 7 inches:
30 [Feet] 4 [Inch] [÷] 7 [Inch] [=] 52
Divide 20 feet 3 inches by 9:
20 [Feet] 3 [Inch] [÷] 9 [=] 2 FT 3 IN
Percentage Calculations
The Percent [%] key is used to find a per-
cent of a number or for working add-on,
discount or division percentages. It can be
used with any type of number, any
dimension (feet, inch, millimeter, etc) and
convention (non-dimensioned, linear,
square or cubic).
Find 18% of 500 feet:
500 [Feet] [x] 18 [%] 90 FT 0 IN
Add 10% for waste to 137 square feet:
137 [Sq] [Feet] [+] 10 [%] 150.7 SQ FT
Take 20% away from 552 feet 6 inches:
552 [Feet] 6 [Inch] [–] 20 [%] 442 FT 0 IN
Divide 350 cubic yards by 80%:
350 [Cu] [Yds] [÷] 80 [%] 437.5 CU YD
12 – Pocket Handyman
®
IV
Memory Functions
Whenever the [M+] key is pressed, the
displayed value will be added to mem-
ory. Other memory functions:
Function Keystrokes
Recall total in memory [Rcl] [M+]
Display & clear memory [Rcl] [Rcl]
Clear memory, no display [Conv] [Rcl]
Subtract from memory [Conv] [M+]
Replace memory with
displayed value [Conv] [Rcl] [M+]
The memory is semi-permanent; it will
only be cleared when you:
1) turn off the calculator;
2) press [Rcl] [Rcl];
3) press [Conv] [Rcl];
4) press [Conv] [x] (all clear).
User’s Guide – 13
How to use memory functions:
Steps Keystrokes Display
Add to memory 355 [M+] 355.
Add to mem. 255 [M+] 255.
Recall total mem. [Rcl] [M+] 610.
Subt. from mem. 745 [Conv] [M+] 745.
Recall total mem. [Rcl] [M+] – 135.
Replace mem. 50 [Conv]
[Rcl] [M+] 50.
Recall & clear [Rcl] [Rcl] 50.
The memory function can also be used
with dimensional units, as long as they
are of the same convention (all linear,
square or cubic). The calculator will
display the word “ERROR” if you try to
enter numbers of different conventions.
14 – Pocket Handyman
®
IV
Fractional Settings
When you first receive your calculator
it is set to its default state. When in this
state, fractional values are rounded to
the nearest 1/16 of an inch. However,
you may program your preference for
six different accuracy levels and two
different modes (Normal and Fixed), all
of which remain in permanent memo-
ry until revised or reset.
The fractional level can be revised by
using the keystrokes below:
Keystroke Fraction Setting
[Conv] 1 1/1
6
[Conv] 2 1/2
[Conv] 3 1/32
[Conv] 4 1/4
[Conv] 6 1/64
[Conv] 8 1/8
Note: Whenever the calculator is set to any-
thing other than 1/16 normal mode, a star
(
★
) will appear in the bottom left of the dis-
play during power up to indicate a special
fractional setting has been stored within.
The fractional setting can be displayed at
any time by pressing [Rcl] [/].
User’s Guide – 15
Normal Fractional Mode
The default, Normal Mode ([Conv] 7),
reduces a fraction to its lowest common
denominator (for example, 8/16 reduces
to 1/2). If a fraction is entered having a
higher fractional accuracy than the cur-
rent setting, the setting will be tem-
porarily revised to the level of accuracy
of the entered value.
Fixed Fractional Mode
In the Fixed Mode ([Conv] 9), fraction-
al results are displayed in the set frac-
tional value, not reduced. Entries of
higher accuracy values will be rounded
to the nearest fraction of the accuracy
setting (for example, for a fraction level
setting of 1/16, an entry of 5 [/] 32 [=]
will result in a display of 3/16).
Flashing Denominator
Your calculator can be set to flash the
denominator (bottom) when entering
fractions by pressing [Conv] [/ ]. In this
way, you can see what fractional accu-
racy level is set. Pressing [Conv] [/]
again will turn the flashing denomina-
tor off. This is a permanent setting that
will remain until revised or reset.
16 – Pocket Handyman
®
IV
“Paperless Tape” Feature
The “Paperless Tape” feature allows the
user to display the last 20 entries. While
in the Paperless Tape mode, your dis-
play will look similar to this:
The display shows the entered or cal-
culated value (12 Inch), sequence num-
ber (04), and the math operator (in this
case it is “+”) for each entry.
As you scroll through the entries, you will
see the designators TTL and SUB. “SUB”
indicates a subtotal. “TTL” indicates the
final total (all subtotals combined).
How to Use the Tape
Steps/Keystrokes Display
1. Clear calculator and enter a string of
numbers:
[On/C] [On/C] 0.
4 [Feet] [+] 4 FEET 0 INCH
5 [Feet] [+] 9 FEET 0 INCH
6 [Feet] [+] 15 FEET 0 INCH
7 [Feet] [=] 22 FEET 0 INCH
Continued on next page.
12 INC
04 +
User’s Guide – 17
2. Access the Tape function
[Rcl] [=] TTL= 22
FEET 0 INCH
3. Scroll forward from first value to total:
[+] 01 4 FEET 0 INCH
[+] 02+ 5 FEET 0 INCH
[+] 03+ 6 FEET 0 INCH
[+] 04+ 7 FEET 0 INCH
[+] TTL= 22 FEET 0
INCH
4. Scroll back to last 2 values:
[–] 04+ 7 FEET 0 INCH
[–] 03+ 6 FEET 0 INCH
5. † Display total and add more values:
[=] TTL= 22
FEET 0 INCH
[+] 22 FEET 0 INCH
2 [Feet] [=] 24 FEET 0 INCH
†Note: At this point, you can press any
key twice (except [Off], [+] or [–]) to exit the
tape feature.
When you press a key to exit the tape,
the total value displays. The next key
press begins a new tape function.
18 – Pocket Handyman
®
IV
Clearing the Paperless Tape
The paperless tape is cleared:
1) when you press
[On/C] [On/C] (clear);
2) when you press
[Conv] [x] (all clear);
3) when you turn the unit off.
User’s Guide – 19
Entering Dimensions & Units
When entering feet-inch dimensional
values, you must enter the largest
dimension first — feet before inches,
inches before fractions. To enter frac-
tions of an inch, enter the numerator
(value above the line), press [/] (frac-
tion bar key) and then enter the
denominator (value below the line).
numerator 3
fraction bar —
denominator 16
For all other units of measurement, you
can only enter whole numbers or dec-
imal numbers. You cannot enter com-
binations of units (for example, you
cannot enter 12 meters 6 centimeters 4
millimeters).
USING THE
POCKET HANDYMAN IV
20 – Pocket Handyman
®
IV
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