The Tonus Body Mass Calculator is an easy way to calculate BMI, BODY FAT %, and LEAN BODY MASS.
The Tonus Body Mass Calculator can be used at home or the gym to calculate BMI, Body Fat %, and Lean Body Mass. For body fat measurements, all you need is a tape measure or body fat weight, it automatically calculates BMI and Lean Body Mass. One button with 4 positions controls all functions and entries.
Calculating BMI is a quick method for the assessment of weight.
All you need to know is your height and weight. Keep the calculator in your gym bag or bathroom and the next time you weight yourself, get your BMI in a snap!
Once Tonus calculates your body fat %, it will then provide you with your lean body mass and then BMI. Weight alone does not distinguish between pounds that come from body fat and those that come from lean body mass or muscle.
Lean Body Mass is the best way to gauge your muscle mass improvement through working out and is your total weight less your body fat weight. It is good to know this number as you can track pounds (or Kg) of muscle that you are adding.
Included with Tonus Body Mass Calculator:
2 LR44 Batteries
User Manual including:
- User instructions
- BMI information and charts
- Body Fat % Charts
- U.S. Navy Tape Measure Instructions
- 3-site Body Fat Measurement Instructions
HOW TO WORK YOUR TONUS BODY MASS CALCULATOR
There is only 1 switch to use on the Tonus, with 4 positions, like a compass:
To turn the unit on, hit and the display will show FAT % - TAPE as the first option for
measurements. If you hit OR to scroll up or down, you will see selections for BMI or FAT
% - CALI (for caliper).
Hit to ENTER your choice and the display will show M for MALE.
CHANGING MALE TO FEMALE (AND BACK AGAIN)
If you need to change from MALE to FEMALE, hit OR to change M to F and back again.
Hit to ENTER your selection, and the display will show AGE 25 for age in years.
CHANGING YOUR AGE
If you need to change your AGE, hit OR to scroll up or down to the first digit of your AGE.
Then hit to ENTER
Hit OR to scroll up or down to the second digit of your AGE.
Hit to ENTER your selection, and the display will show LB for POUNDS, which is the starting
point for WEIGHT.
CHANGING POUNDS TO KILOGRAMS
If you need to change from LB TO KG, hit OR to change.
Hit to ENTER your selection and the display will now show WEIGHT 155 LB (or 070 KG).
NOTE: selecting KG assumes that you are using metric numbers for weight, height, and tape
measure measurements.
CHANGING YOUR WEIGHT
To change each digit of your WEIGHT measurement, hit or followed by to ENTER.
NOTE: if you select KG and you weigh less than 100 KG keep the first digit set to 0.
After entering the last digit of your WEIGHT, the display will show HEIGHT 65.0 IN (or 165 CM
for CENTIMETERS if KG was selected above), which is the starting point for HEIGHT.
CHANGING YOUR HEIGHT
To change each digit of your HEIGHT measurement, hit or followed by to ENTER.
NOTE: when using inches, the tenths digit will change by 0.5 only, displaying numbers like
65.0 or 65.5.
After entering the last digit of your HEIGHT:
IF YOU SELECTED BMI, THE DISPLAY WILL SHOW BODY MASS INDEX as BMI xx.x
Hitting or ENTER, will take you back to the main screen.
IF YOU SELECTED FAT % - TAPE or FAT % - CALI see the appropriate section below:
BODY FAT % - TAPE
Note that there are 2 readings for MALE – UPPER and MIDDLE corresponding to the NECK and
ABDOMEN locations; and 3 readings for FEMALE - UPPER, MIDDLE, and LOWER, corresponding
to the NECK, WAIST, and HIPS locations.
After entering your height the display will show UPPER 15.0 IN (or 038 CM), which is the
starting point for NECK circumference.
CHANGING YOUR NECK MEASUREMENT
To change each digit of your NECK measurement, hit or followed by to ENTER.
NOTE: when using inches, the tenths digit will change by 0.5 only, displaying numbers like
15.0 or 15.5.
After entering the last digit of your NECK circumference, the display will show MIDDLE 35.0 IN
(or 089 CM), which is the starting point for ABDOMEN circumference.
CHANGING YOUR ABDOMEN or WAIST (FEMALE) MEASUREMENT
To change each digit of your ABDOMEN or WAIST measurement, hit or followed by to
ENTER.
If you are FEMALE, skip the next paragraph.
If you are MALE:
After entering the last digit of your ABDOMEN measurement, the display will show FAT % xx.x
Hit again and the display will show xxx, your Lean Body Mass in LB or KG.
Hit again and the display will show BMI.
Hitting or ENTER, will take you back to the main screen.
If you are FEMALE, after entering the last digit of your WAIST circumference, the display will
show LOWER 35.0 IN (or 089 CM), which is the starting point for HIPS circumference.
CHANGING YOUR HIPS MEASUREMENT
To change each digit of your HIPS measurement, hit or followed by to ENTER.
After entering the last digit of your HIPS circumference, the display will show FAT % xx.x
Hit again and the display will show xxx, your Lean Body Mass in LB or KG.
Hit again and the display will show BMI.
Hitting or ENTER, will take you back to the main screen.
BODY FAT % - CALIPER
NOTE that you will only ENTER caliper readings in millimeters (mm).
There are 3 readings – UPPER, MIDDLE, and LOWER corresponding to the CHEST, ABDOMEN,
and THIGH locations for MALES and TRICEPS, SUPRAILIAC, and THIGH locations for FEMALES.
After entering your height the display will show UPPER 15, which is the starting point for your
upper caliper measurement (CHEST for MALE, TRICEPS for FEMALE).
CHANGING YOUR UPPER MEASUREMENT
To change each digit of your UPPER measurement, hit or followed by to ENTER.
The display will show MIDDLE 15, which is the starting point for your MIDDLE caliper
measurement (ABDOMEN for MALE, SUPRAILIAC for FEMALE).
CHANGING YOUR MIDDLE MEASUREMENT
To change each digit of your MIDDLE measurement, hit or followed by to ENTER.
The display will show LOWER 15, which is the starting point for your LOWER caliper
measurement (THIGH for MALE and FEMALE).
CHANGING YOUR LOWER MEASUREMENT
To change each digit of your LOWER measurement, hit or followed by to ENTER.
After entering the last digit of your LOWER measurement, the display will show FAT % xx.x
Hit again and the display will show xxx, your Lean Body Mass in LB or KG.
Hit again and the display will show BMI.
Hitting or ENTER, will take you back to the main screen.
MODIFYING PRIOR ENTRIES
The numbers you entered will remain in the calculator in case you want to modify any of the
entries.
HIT or ENTER until you need to change or review a number.
Note that the numbers will be stored for a period of time depending on the available battery
life.
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