diff --git a/.changelog/unreleased/features/974-id-into-string.md b/.changelog/unreleased/features/974-id-into-string.md
new file mode 100644
index 000000000..fb2d5bb3a
--- /dev/null
+++ b/.changelog/unreleased/features/974-id-into-string.md
@@ -0,0 +1,2 @@
+- Provide `Into<String>` for all identifiers types.
+  ([\#974](https://github.com/cosmos/ibc-rs/pull/974))
diff --git a/ibc-core/ics24-host/types/src/identifiers/chain_id.rs b/ibc-core/ics24-host/types/src/identifiers/chain_id.rs
index 5b532aeef..a88fdc940 100644
--- a/ibc-core/ics24-host/types/src/identifiers/chain_id.rs
+++ b/ibc-core/ics24-host/types/src/identifiers/chain_id.rs
@@ -148,6 +148,12 @@ impl FromStr for ChainId {
     }
 }
 
+impl From<ChainId> for String {
+    fn from(chain_id: ChainId) -> String {
+        chain_id.id
+    }
+}
+
 impl Display for ChainId {
     fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), FmtError> {
         write!(f, "{}", self.id)
diff --git a/ibc-core/ics24-host/types/src/identifiers/channel_id.rs b/ibc-core/ics24-host/types/src/identifiers/channel_id.rs
index f4dc7e2fa..3cfeacb7b 100644
--- a/ibc-core/ics24-host/types/src/identifiers/channel_id.rs
+++ b/ibc-core/ics24-host/types/src/identifiers/channel_id.rs
@@ -1,6 +1,7 @@
 use core::fmt::{Debug, Display, Error as FmtError, Formatter};
 use core::str::FromStr;
 
+use derive_more::Into;
 use ibc_primitives::prelude::*;
 
 use crate::error::IdentifierError;
@@ -22,7 +23,7 @@ const CHANNEL_ID_PREFIX: &str = "channel";
 )]
 #[cfg_attr(feature = "serde", derive(serde::Serialize, serde::Deserialize))]
 #[cfg_attr(feature = "schema", derive(schemars::JsonSchema))]
-#[derive(Clone, Debug, PartialEq, Eq, PartialOrd, Ord, Hash)]
+#[derive(Clone, Debug, PartialEq, Eq, PartialOrd, Ord, Hash, Into)]
 pub struct ChannelId(String);
 
 impl ChannelId {
diff --git a/ibc-core/ics24-host/types/src/identifiers/connection_id.rs b/ibc-core/ics24-host/types/src/identifiers/connection_id.rs
index 10a2c8857..a0283f5f4 100644
--- a/ibc-core/ics24-host/types/src/identifiers/connection_id.rs
+++ b/ibc-core/ics24-host/types/src/identifiers/connection_id.rs
@@ -1,6 +1,7 @@
 use core::fmt::{Display, Error as FmtError, Formatter};
 use core::str::FromStr;
 
+use derive_more::Into;
 use ibc_primitives::prelude::*;
 
 use crate::error::IdentifierError;
@@ -22,7 +23,7 @@ const CONNECTION_ID_PREFIX: &str = "connection";
 )]
 #[cfg_attr(feature = "serde", derive(serde::Serialize, serde::Deserialize))]
 #[cfg_attr(feature = "schema", derive(schemars::JsonSchema))]
-#[derive(Clone, Debug, PartialEq, Eq, PartialOrd, Ord, Hash)]
+#[derive(Clone, Debug, PartialEq, Eq, PartialOrd, Ord, Hash, Into)]
 pub struct ConnectionId(String);
 
 impl ConnectionId {
diff --git a/ibc-core/ics24-host/types/src/identifiers/port_id.rs b/ibc-core/ics24-host/types/src/identifiers/port_id.rs
index d1b640757..e1a0e062d 100644
--- a/ibc-core/ics24-host/types/src/identifiers/port_id.rs
+++ b/ibc-core/ics24-host/types/src/identifiers/port_id.rs
@@ -1,6 +1,7 @@
 use core::fmt::{Display, Error as FmtError, Formatter};
 use core::str::FromStr;
 
+use derive_more::Into;
 use ibc_primitives::prelude::*;
 
 use crate::error::IdentifierError;
@@ -22,7 +23,7 @@ const TRANSFER_PORT_ID: &str = "transfer";
 )]
 #[cfg_attr(feature = "serde", derive(serde::Serialize, serde::Deserialize))]
 #[cfg_attr(feature = "schema", derive(schemars::JsonSchema))]
-#[derive(Clone, Debug, PartialEq, Eq, PartialOrd, Ord, Hash)]
+#[derive(Clone, Debug, PartialEq, Eq, PartialOrd, Ord, Hash, Into)]
 pub struct PortId(String);
 
 impl PortId {
diff --git a/ibc-testkit/src/hosts/block.rs b/ibc-testkit/src/hosts/block.rs
index be7419c65..9ce08cdce 100644
--- a/ibc-testkit/src/hosts/block.rs
+++ b/ibc-testkit/src/hosts/block.rs
@@ -148,7 +148,7 @@ impl HostBlock {
                 let light_block = TestgenLightBlock::new_default_with_header(
                     TestgenHeader::new(validators)
                         .height(height)
-                        .chain_id(&chain_id.to_string())
+                        .chain_id(chain_id.as_str())
                         .next_validators(next_validators)
                         .time(timestamp.into_tm_time().expect("Never fails")),
                 )