Price an order or a usage bill with quantity tiers. Enter your tier table and a quantity to see the total, the cost in each tier and the effective unit price, and compare graduated (stepped) pricing with all-units volume pricing.
Last updated:
Leave "to" empty (or +) on the last tier for no upper limit. A 4th number adds a flat fee for that tier.
units
Pricing model
Enter your values to see the result.
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How to use the Tiered Pricing Calculator
Enter your tiers, one per line: from, to, unit price (and an optional flat fee).
Leave the last tier's "to" empty to make it open-ended.
Type the quantity to price.
Choose graduated or volume pricing.
Read the total, the per-tier breakdown and the effective unit price, and compare the two models on the chart.
Tiered pricing formulas
Graduated: total = Σ (units in tier × tier price + tier flat fee if reached), where units in tier = min(quantity, tier end) − previous tier end, never below 0.
Volume: find the tier that contains the quantity; total = quantity × that tier's price + its flat fee.
Effective unit price = total ÷ quantity.
Worked comparison
Tiers: 1–100 at $5.00, 101–500 at $4.00, 501–1,000 at $3.25, 1,001+ at $2.50.
Quantity
Graduated total
Graduated unit price
Volume total
Volume unit price
50
$250.00
$5.0000
$250.00
$5.0000
100
$500.00
$5.0000
$500.00
$5.0000
250
$1,100.00
$4.4000
$1,000.00
$4.0000
500
$2,100.00
$4.2000
$2,000.00
$4.0000
501
$2,103.25
$4.1981
$1,628.25
$3.2500
650
$2,587.50
$3.9808
$2,112.50
$3.2500
1,000
$3,725.00
$3.7250
$3,250.00
$3.2500
1,001
$3,727.50
$3.7238
$2,502.50
$2.5000
2,500
$7,475.00
$2.9900
$6,250.00
$2.5000
Notice the volume cliff at 500 → 501 units and at 1,000 → 1,001: the total drops when you cross into a cheaper tier. Graduated pricing never decreases as quantity grows.
Frequently asked questions
What is the difference between graduated and volume pricing?
With graduated (stepped) pricing, the units in each tier are charged at that tier's price: the first 100 at $5, the next 400 at $4 and so on. With volume pricing, the quantity decides one tier and every unit is charged at that tier's price.
How do I calculate graduated tiered pricing?
For each tier, count the units that fall inside it (up to the quantity), multiply by the tier price and add the results. 650 units with tiers 1–100 at $5, 101–500 at $4 and 501–1,000 at $3.25 cost 100 × 5 + 400 × 4 + 150 × 3.25 = $2,587.50.
Why can buying more cost less with volume pricing?
Because crossing a tier boundary lowers the price of every unit. With volume tiers of $4 up to 500 and $3.25 above, 500 units cost $2,000 but 501 units cost $1,628.25. This cliff is a common reason sellers prefer graduated pricing.
What is the effective unit price?
It is the total price divided by the quantity: the average price paid per unit. Under graduated pricing it falls gradually as quantity rises.
What is a flat fee per tier?
Some billing systems add a fixed charge when usage reaches a tier, on top of the per-unit price. In graduated mode the flat fee of every tier that is reached is added; in volume mode only the selected tier's flat fee is added.
Can I use decimals for quantities?
Yes. Quantities such as GB of storage or kWh can be fractional; tiers are treated as continuous ranges, so a tier ending at 100 is followed by one that covers everything above 100.
Are all the tools on FreeToolCabin tested for quality and accuracy?
Yes! Every tool on our site undergoes automated Q/A testing in real browser environments to ensure high precision, correct output, and zero errors. If you happen to spot a bug or have a suggestion, please contact us at [email protected] and our team will review it right away.