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The fast, easy and shareable online calculator.
Try an example or take the tour.
Use anywhere: browser plugin, vista gadget
Try an example or take the tour.
Use anywhere: browser plugin, vista gadget
Results appear in real-time as you type. Use readable numbers, equations, and more:
Link to any calculation for your IM, email or forum post. No logins, no attachments, no hassles.
Embed a live calculator in your blog. Readers can play with your numbers and save links, without a login.![[image]](http://mowser.com/img?url=http%3A%2F%2Finstacalc.com%2Frelease%2Fbuild528%2Fimages%2Fclear-all.png)
Link to any calculation for your IM, email or forum post. No logins, no attachments, no hassles.
Embed a live calculator in your blog. Readers can play with your numbers and save links, without a login.
Take the tour or browse all the commands below.
Basic Commands (Click to load example in new window)
Feature Example Result
Arithmetic
+ - * / 2 + 2 - 3
(3 * 5) / 2 1
7.5
+ - * / 2 + 2 - 3
(3 * 5) / 2 1
7.5
Roots & powers
25
sqrt(9)
5^2
25
Percent
5%
100 * 17%
20 + 50%
0.05
17
30
Number shortcuts
(k, m, b, t)
(k, m, b, t)
3.3k
200 million (or 200m)
6.6 billion (or 6.6b)
3,300
200,000,000
6,600,000,000
Exponent notation 1.234e3
1e-3 1,234
0.001
1e-3 1,234
0.001
Using variables x = 9
y = x + 3
sqrt(x)
x + y 9
12
3
21
y = x + 3
sqrt(x)
x + y 9
12
3
21
Using rows r1
r2
r3
sum(r1:r3)
average(r1:r3) 9
12
3
24
8
r2
r3
sum(r1:r3)
average(r1:r3) 9
12
3
24
8
Convert unit into another (green means success):
15 feet into inches = 180 inches
Can even convert rates:
15 miles/hour into feet/second = 22 feet/second
15 pounds/year in pounds/month = 1.25 pounds/month
/, per, until, every
15 feet into inches = 180 inches
Can even convert rates:
15 miles/hour into feet/second = 22 feet/second
15 pounds/year in pounds/month = 1.25 pounds/month
/, per, until, every
Weight:
ounce (oz), pound (lb), ton
gram (g), kilogram (kg), milligram (mg), microgram (ug)
150 lbs in kg = 68.038...kg
ounce (oz), pound (lb), ton
gram (g), kilogram (kg), milligram (mg), microgram (ug)
150 lbs in kg = 68.038...kg
Length:
mile, yard (yd), foot (ft), inch (in), knot, span, league
kilometer (km), meter (m), cm, mm, nm, pm
15 feet in inches = 180 inches
mile, yard (yd), foot (ft), inch (in), knot, span, league
kilometer (km), meter (m), cm, mm, nm, pm
15 feet in inches = 180 inches
Area (add "square" or "^2" to any unit)
acre, square mile, yd^2, in^2...
km^2, square meter, cm^2...
2 acres in m^2 = 8093.712... m^2
acre, square mile, yd^2, in^2...
km^2, square meter, cm^2...
2 acres in m^2 = 8093.712... m^2
Volume (add "cubic" or "^3" to any unit)
gallon (gal), quart (qt), pint (pt), cup (cp), fluid ounce (fl oz), tablespoon (tbsp), teaspoon (tsp), cubic inch, ft^3...
Liter (L), milliliter (mL), cm^3 (cc), cubic km...
1500 cc in cubic inches = 91.53... cubic inches
gallon (gal), quart (qt), pint (pt), cup (cp), fluid ounce (fl oz), tablespoon (tbsp), teaspoon (tsp), cubic inch, ft^3...
Liter (L), milliliter (mL), cm^3 (cc), cubic km...
1500 cc in cubic inches = 91.53... cubic inches
Time
second (sec), minute (min), hour (hr), day, month, year, decade, century
millisecond (ms), microsecond (us), nanosecond (ns), picosecond (ps)
3 days in minutes = 4320 minutes
second (sec), minute (min), hour (hr), day, month, year, decade, century
millisecond (ms), microsecond (us), nanosecond (ns), picosecond (ps)
3 days in minutes = 4320 minutes
Currency (3-letter code)
USD (US Dollar), EUR (Euro), JPY (Yen), BRL (Brazilian Real), GPB (British Pound), IRL (Indian Rupee), CNY (Chinese Yuan), MXN (Mexican Peso), HKD (Hong Kong Dollar), AUD (Australian Dollar), CAD (Canadian Dollar)...
15 USD in EUR = 11.59... EUR (weekly updates; general estimates only)
USD (US Dollar), EUR (Euro), JPY (Yen), BRL (Brazilian Real), GPB (British Pound), IRL (Indian Rupee), CNY (Chinese Yuan), MXN (Mexican Peso), HKD (Hong Kong Dollar), AUD (Australian Dollar), CAD (Canadian Dollar)...
15 USD in EUR = 11.59... EUR (weekly updates; general estimates only)
Rounding round(3.51)
roundup(3.01)
rounddown(3.99) 4
4
3
roundup(3.01)
rounddown(3.99) 4
4
3
Absolute value abs(-2) 2
Factorial 3! 6
Currency formatting $5
$5 / 3 $5.00
$1.67
$5 / 3 $5.00
$1.67
Add comment
(text to ignore) 30 + 40 // new total 70 new total
(text to ignore) 30 + 40 // new total 70 new total
Hide row Click result to hide row
Insert/remove row Click "R1" to display row options
Enter data in rows bob = 18
joe = 27
jim = 31
18
27
31
joe = 27
jim = 31
18
27
31
Type: bacrchart, piechart, linechart barchart(r1:r3)
(Variable names become labels)
Click for example
(Variable names become labels)
Click for example
Random numbers random
random(10) 0.434... (from 0...1)
7 (from 1...10)
random(10) 0.434... (from 0...1)
7 (from 1...10)
Rounding round(3.51)
roundup(3.01)
rounddown(3.99) 4
4
3
roundup(3.01)
rounddown(3.99) 4
4
3
Absolute value abs(-2) 2
Factorial 3! 6
Constants PI
E
E
3.14159...
2.71828...
Degrees & radians
(degrees by default) 30
30 deg
PI rad 30
30
180
(degrees by default) 30
30 deg
PI rad 30
30
180
sin, cos, tan
asin, acos, atan sin(30)
sin(PI/4 rad) 0.5
0.707...
asin, acos, atan sin(30)
sin(PI/4 rad) 0.5
0.707...
e^x
Natural Log (ln)
Log base 10 (log)
E^2
ln(2)
log(2)
7.389...
7.389...
0.693..
0.301...
File sizes (bytes)
(kb, mb, gb, tb, pb)
2048
(kb, mb, gb, tb, pb)
1kb
10 gb / 5mb
2048
Bandwidth (bits/sec)
(kbps, mpbs, gbps) 1.5 mbps 196,608 (converted to bytes/sec)
(kbps, mpbs, gbps) 1.5 mbps 196,608 (converted to bytes/sec)
Time
time(90)
time(1gb / 1.5mbps) 1m 30.00s
1h 31m 1.333s
time(90)
time(1gb / 1.5mbps) 1m 30.00s
1h 31m 1.333s
Into decimal
375
65,279
0b1001 (binary)
0o567 (octal)
0xfeff (hex)
375
65,279
Binary operators
(and or xor not)
bin(a = 3)
bin(b = 5)
a and b
bin(a and b)
a or b
a xor b
not a
1
7
6
-4 (two's complement) 0b00000001 0b000001010b00000011
Logical operators
(> >= == <= <) 2 * 2 > 3
x = 3
2 * 2 > x
(> >= == <= <) 2 * 2 > 3
x = 3
2 * 2 > x
true
3
true
Conditional statements if (3 > 2){"bigger"} else {"smaller or equal"} bigger
Shorthand
4
7
x = 3
++x
x += 3
4
7
It's faster than calc and easier than Excel.
1. Results appear as you type:
See the calculation and result side-by-side.
2. Write natural equations:
Say goodbye to "spreadsheet bingo" like E52-C12.
3. Use advanced commands with ease:
Try programming, charts, unit conversion and more.
1. Results appear as you type:
See the calculation and result side-by-side.
2. Write natural equations:
Say goodbye to "spreadsheet bingo" like E52-C12.
3. Use advanced commands with ease:
Try programming, charts, unit conversion and more.
There's no cost, no login and no install needed.
1. Link to any calc from your blog, email or forum post.
2. Embed a live calc in your website.
3. Browse and share calcs in the public library.
1. Link to any calc from your blog, email or forum post.
2. Embed a live calc in your website.
3. Browse and share calcs in the public library.
Try out these calcs: BMI, Unit conversion, Home Loan, Salary, Programming, Website earnings, Website bandwidth, YouTube analysis, video game prices, country populations, zune vs ipod and more
Yep, you can have fun using a calculator. Read the reviews:
Take the tour and see the features in action!
Like it?
Yep, you can have fun using a calculator. Read the reviews:
"Instacalc just blows my mind. It's such a simple idea, brilliantly executed..." "An astonishing mixture between a simple calculator and a spreadsheet application."
Take the tour and see the features in action!
Like it?
Bookmark a blank calc for quick access Read the blog for tips and updates Give feedback and tell a friend!
Calculators: BMI, Home Loan, Salary, Programming, Website earnings, Website bandwidth, Unit conversion
In the news:
See the buzz: "Instacalc just blows my mind. It's such a simple idea, brilliantly executed." -Download Squad.
In the news:
See the buzz: "Instacalc just blows my mind. It's such a simple idea, brilliantly executed." -Download Squad.
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