https://etherscan.io/ether-mining-calculator

https://badmofo.github.io/zcash-mining-calculator/


Otherwise for one hour it's: your_hashrate / network_hashrate * 3600 / blocktime * coins_per_block

So for example Zec with 20000 sols it's:

20000 / 114250338 * 3600 / 150 * 10 = 0.004201 ZEC per hour.