Private Key doesn't match to bitcoin address

[harvysam]

I had been using BTC for a while now and I used to use Bitcoin Core in my system for all transactions, recently I had a problem with my computer and now I just thought let me use blockchain.info website.
But the private key which I had for my address in bitcoin core shows a different address in blockchain and I'm not able to see my balance.

Could anyone help or suggest me on this?

[starmyc]

A single private key can be tied to multiple address (legacy - starting with a 1, p2sh (segwit or not) starting with a 3, bech32, starting by 'bc')...
Therefore, when you actually import a private key in bitcoin core, it will automatically reference 3 address for this key, to find out unspent transactions then compute your balance. It is unlikely that you got 2 different '1' addresses for the same private key.

The best would be to try import your private key in bitcoin core, check generated addresses & your funds, and if you want to move your funds to an online wallet like blockchain.info, to generate an address on this wallet and send the funds in a transaction.

[Lucius]

I had been using BTC for a while now and I used to use Bitcoin Core in my system for all transactions, recently I had a problem with my computer and now I just thought let me use blockchain.info website.
But the private key which I had for my address in bitcoin core shows a different address in blockchain and I'm not able to see my balance.

Could anyone help or suggest me on this?

It seems that you have the wrong private key and what's not wise is to expose private keys to online wallets.You should use Electrum which is desktop and lightweight wallet and you can import your private keys there.But I would recommend you to create Electrum standard wallet with seed and just send your BTC from Core to Electrum.

In case you still want to try import private keys you need to have private keys for all addresses that have some balance in Core.If you decide to use Electrum and send BTC from Core be careful to download only from https://electrum.org/#home

[Thirdspace]

But the private key which I had for my address in bitcoin core shows a different address in blockchain and I'm not able to see my balance.

Could anyone help or suggest me on this?

first of all, what kind of addresses you have in bitcoin core?
if bech32 address then you shouldn't be using bc.info, they haven't fully supported native segwit address yet
if 1xx legacy address, it would be simple different formats display
it's a matter of compressed/uncompressed bitcoin address and private keys. what's your private key starts with?
starts with 5 for uncompressed address and starts with K or L for compressed address

[ditemorin]

check again

[udroxz]

It is right private key can get the all money from BTC but public key can do the trade with no harm please do not send anyone your private key it will be dangerous.

[Rhoby10]

I had been using BTC for a while now and I used to use Bitcoin Core in my system for all transactions, recently I had a problem with my computer and now I just thought let me use blockchain.info website.
But the private key which I had for my address in bitcoin core shows a different address in blockchain and I'm not able to see my balance.

Could anyone help or suggest me on this?

Well i think no its just connected the private key in bitcoin because in my account i used the private key on my bitcoin but its just working so that its nice and working my etherium address