BTC電卓

"BTC Calculator" is a calculator that calculates the amount of Bitcoin and Japanese Yen (JPY) in both directions.

It is useful when converting to yen at BTC-denominated exchanges!

The "Satoshi" button makes it easy to calculate in Satoshi units.
For example, if you want to find out how much 430 Satoshi is in Japanese Yen, press the buttons "4", "3", "0", and "Satoshi" to calculate the Japanese Yen amount.

The BTC rate is obtained using bitFlyer's API.

◆Main functions
・Enter the price of BTC, perform arithmetic operations, and display the price in Japanese yen
・Enter the price in Japanese yen, perform arithmetic operations, and display the price in BTC
・Satoshi button assists input in units of 0.00000001
*Satoshi button can be changed to μBTC or mBTC by changing the settings

◆Update history
2025/07/06
・Fixed layout collapse
2025/07/02
・Supports API level 35
2024/07/09
・Supports API level 34
2023/08/20
・Supports API level 33
2022/07/16
・Supports changing the Satoshi button to μBTC or mBTC by changing the settings.
・Updated and restored links to recommended exchanges.
2020/01/16
・Removed exchange links and donation addresses
2018/03/10
・App released