The Senate of the Philippines is composed of 24 senators. These senators are elected at large by the qualified voters of the entire country, meaning the Philippines forms one district for senatorial elections

. Senators serve six-year terms and can be re-elected for one consecutive term. Elections are staggered so that half of the Senate (12 senators) is elected every three years

. In summary:

• Total number of senators: 24
• Term length: 6 years
• Election system: At-large nationwide election
• Election cycle: 12 senators elected every 3 years

This structure is established by Article VI, Section 2 of the 1987 Philippine Constitution