The number of sit-ups you should do daily depends on your fitness level, goals, and form quality. For most people, a good target is about 40 sit-ups per day, focusing on proper form rather than high volume

. Beginners might start with 2-3 sets of 8-12 reps, gradually increasing to 15-25 reps per set as strength improves

. Key points to consider:

• Quality over quantity: Doing too many sit-ups quickly can compromise form and increase injury risk

• Avoid overuse injuries by not doing excessive reps daily; mix with other core exercises and back strengthening

• For endurance and fitness testing, aiming for 3-4 sets of 20+ sit-ups with minimal rest is effective

• Sit-ups alone won’t reveal abs; diet and overall body fat reduction are crucial for visible results

In summary, starting with about 30-40 sit-ups per day, split into manageable sets with good form, is a reasonable approach for most people. Adjust volume based on your progress and fitness goals, and complement sit-ups with other core exercises and a healthy diet.