BaseWhiz: Convert & Calculate

LabyrinthCode

About this app

BaseWhiz converts numbers between bases and shows you how the answer was worked out. It is built for computer science students, and for anyone who works with binary and hex.

CONVERT ANYTHING
• Binary, octal, decimal and hexadecimal, plus any base from 2 to 36
• Fractions and negative numbers, converted exactly
• Two's complement, one's complement and sign-magnitude in 8, 16, 32 or 64 bits
• IEEE 754 floats: half, single and double precision
• BCD, Gray code and Excess-3
• Text to its UTF-8 bytes, and back

SEE EVERY STEP
Tap the steps button and BaseWhiz shows the working behind the answer: the repeated divisions, the place values, the sign, exponent and mantissa of a float. It is the same method you are asked to write in an exam.

KNOW WHAT A FLOAT REALLY HOLDS
Type 0.1 and see the exact value a float stores instead: 0.100000001490116119384765625. BaseWhiz tells you when an answer is exact and when it had to be rounded.

BITWISE MATHS, WITH FLAGS
• AND, OR, XOR, NOT, shifts, add and subtract in an 8, 16, 32 or 64-bit word
• Carry, overflow, zero and negative flags after every sum
• The answer as both unsigned and signed
• Exact add, subtract, multiply, divide and remainder in any of the four common bases

A BITBOARD YOU CAN TOUCH
Flip single bits and watch the value change in decimal, hex, octal and signed. Shift, rotate, invert or swap the bytes of a word up to 64 bits.

PRACTICE UNTIL IT CLICKS
Rounds of ten questions on bases, signed numbers, floats and bitwise sums. Every question comes with its steps, and your streak keeps count.

MADE FOR FAST WORK
• A keypad that changes with the base, so you can only type valid digits
• A live bit strip under the number you type
• Paste 0xFF, 0b1010 or a whole sum like 0xFF + 0b1010
• Select a number in another app and choose "Convert in BaseWhiz"
• History you can search and pin
• Dark and light themes

PRIVATE AND SIMPLE
No ads, no account and no internet permission. Your history stays on your phone.

What’s new

A new BaseWhiz, rebuilt from the ground up.

• New design, in dark and light
• Any base from 2 to 36, two's complement, IEEE 754 floats, BCD, Gray code and text
• Steps: see how every answer is worked out
• Bitwise maths in 8 to 64-bit words, with carry, overflow, zero and negative flags
• Practice: quiz rounds on bases, signed numbers, floats and bitwise sums
• A 64-bit bit-board with shift, rotate and byte swap
• Exact answers for fractions and negative numbers
• New icon