Energy Value
Enter the energy value that you want to convert, in one of these formats:
Integer:
2
314
Decimal:
2.71828
+986.314
Scientific Notation:
2.7E+2
0.3528e03
Formula:
300/50
(2.7*5e4)/( 1 - (6.5/1.8e-2) )
Fraction:
2+3/8
9 + ( 17 / 32 )
Calculator Memory:
You can use the results from previous conversions or calculations, which you may have saved in the Calculator Memory.
First set focus on the energy input field, then click the Recall button on one of the Memories.
The memory contents is loaded to the input field.
See the Calculator Memory for more details.
Maximum Input Length: 200 characters
From and To Menus
From Menu
In this menu, choose the energy units of your input value, for example one of these.
BTU
calorie
joule
To Menu
In this menu, choose the energy units you want to convert to, for example one of these.
erg
kilowatt hour
horsepower hour
TIP:
Drag your mouse pointer in the To or From menu to change units. Release the mouse button to perform a new conversion.
TIP:
Select units in the To or From menu. Press the Up and Down arrow keys on the keyboard to change units and do a new conversion.
Energy Value You Entered
The energy value you entered in the input field, is shown here again as a number with the From energy units added.
If you entered a formula or a fraction in the energy input field, your formula or fraction was calculated and reduced to this number.
The energy units shown here are the units selected in the From menu.
TIP:
You can Copy and Paste any of the fields by selecting the text in the field,
then pressing:
PC: Control-C copy, Control-V paste.
Mac: Command-C copy, Command-V paste.
TIP:
Error messages, if any, are displayed here.
Your Energy Converted
This is the energy value resulting from conversion, with the energy units that are selected in the To menu.
Calculator Memory
You can save the result of your conversion in the Calculator Memory,
then use your saved results later as input for other converters and calculators
anywhere on the website.
See the Calculator Memory for more details.
TIP:
Precision of the converter is 12 significant digits, from left to right. Digits after the 12 left-most digits, are not significant.
Numeric Range of the converter is:
+1.797e+308 to -1.797e+308
+1.000e-311 to -1.000e-311
TIP:
Error messages, if any, are displayed here.
Control Buttons
The energy converter has three control buttons.
Decimal and Scientific buttons let you choose the output format, as one of these two:
Decimal:
-9999.1
Scientific Notation:
-9.9991e3
Decimal Button –
In this mode the converter will output in Decimal format whenever possible.
However, the converter will automatically output in Scientific Notation
when the results cannot be shown properly in Decimal format.
Scientific Button –
In this mode the converter will always output in Scientific Notation.
Convert Button –
Convert the energy value that you entered above, by using any of these methods:
- Click the Convert button
- Select a different unit in the From menu
- Select a different unit in the To menu
- Click the Decimal or the Scientific button
- Press Enter or Return on keyboard
TIP:
Scientific Notation is better for visualizing and working with big and small numbers, compared to decimal format.