The value of a 1976 dime can be determined by identifying the condition and mint mark of the coin, and then looking at a price guide. Price guides are available from sources such as CoinTrackers, USA Coin Book and CoinHELP.
According to CoinHELP, 1976 dimes minted in Philadelphia that are in moderate condition may be worth around $55, in 2014 prices. A 1976 dime in the same condition but with a Denver mint mark may be worth around $45. Higher condition coins minted as proofs in the San Francisco mint may be worth between $8 to $20. The Philadelphia mint produced 568.76 million dimes in 1976, while the San Francisco mint produced 4.149 million, and the Denver mint produced 695.222 million.