Why cap loading efficiency at 100%?

Efficiency is the share of pitch positions that carry product. It cannot exceed 100%, because empty positions only remove capacity. A figure above 100% is a data error, so the input blocks it.

What pitch do I enter?

The center to center or leading edge distance between products on the belt, including the gap. The design guide defines pitch as product length plus gap.

Is equivalent speed the drive setpoint?

It is the belt speed the target requires. The drive setpoint that produces it depends on the pulley diameter and gear ratio, which the drive selection uses to pick the ratio.

What does a positive speed gap mean?

The installed belt speed is above the equivalent speed the target needs. The surplus is speed margin you can trade for a rate increase or dial back for smoother transfers.

Conveyors calculator

Conveyor Belt Speed Conversion Calculator

Convert a production output target into the belt speed a conveyor drive must run at a given product pitch and loading efficiency. Compare the result with the installed speed to see whether the drive can deliver the target.

What this calculator does

Belt speed that delivers an output target at a product pitch and loading efficiency, checked against installed speed.

Formula used

Adjusted output rate = output target ÷ (loading efficiency ÷ 100)
Equivalent belt speed = adjusted output rate × product pitch (in) ÷ 720; 720 = 12 in per ft × 60 min per hr
Speed gap = installed belt speed − equivalent belt speed; negative means the drive falls short

Inputs explained

Production Output Target: Output rate the conveyor speed must deliver, from the schedule.
Product Pitch: Center to center of products, product length plus gap.
Loading Efficiency: Share of pitch positions carrying product; 72% leaves gaps.
Installed Belt Speed: Belt speed the installed drive can reach, from the data plate.

How to use the result

Best suited to setting a conveyor speed setpoint, checking a drive against a rate increase, sizing a new conveyor for a target rate.
A steady conversion; acceleration, transfers and line starts need their own speed margin. One pitch for the whole run; mixed products need the longest pitch or a weighted average.

Current U.S. benchmarks

The U.S. has 21,668 machinery manufacturing establishments employing about 1,086,146 workers (Census County Business Patterns, 2023).

Common questions

Why cap loading efficiency at 100%? Efficiency is the share of pitch positions that carry product. It cannot exceed 100%, because empty positions only remove capacity. A figure above 100% is a data error, so the input blocks it.
What pitch do I enter? The center to center or leading edge distance between products on the belt, including the gap. The design guide defines pitch as product length plus gap.
Is equivalent speed the drive setpoint? It is the belt speed the target requires. The drive setpoint that produces it depends on the pulley diameter and gear ratio, which the drive selection uses to pick the ratio.
What does a positive speed gap mean? The installed belt speed is above the equivalent speed the target needs. The surplus is speed margin you can trade for a rate increase or dial back for smoother transfers.

Last reviewed 2026-10-01.