ETF expense ratio calculator

An ETF’s expense ratio is deducted from the fund every year, so small differences compound into large sums. Compare two funds side by side to see the cost in money, not just basis points.

Cost of the pricier fund

8,463.04

Total fee & compounding drag

Final value — fund A: 180,836.00; 326.33 direct fees
Final value — fund B: 172,372.96; 6,880.86 direct fees
Final value with no fees: 181,256.26

Year	Fund A value	Fund B value	Cumulative drag
1	59,483.95	59,152.25	331.70
2	69,628.73	68,881.50	747.23
3	80,480.39	79,224.14	1,256.25
4	92,088.19	90,218.82	1,869.36
5	104,504.80	101,906.67	2,598.13
6	117,786.59	114,331.38	3,455.21
7	131,993.84	127,539.40	4,454.44
8	147,191.04	141,580.12	5,610.92
9	163,447.16	156,506.04	6,941.13
10	180,836.00	172,372.96	8,463.04

1. Ecuación Matemática e Identidad de Valoración

Each year: Value = (Value × (1 + gross return)) × (1 − expense ratio) + contribution

2. Cómo Utilizar la Calculadora y Parámetros de Entrada

Enter your starting amount, a yearly contribution, the expected gross return before fees and the two expense ratios to compare.

Fees are taken from the grown balance each year, so you see both the direct fee and the growth it would have earned.

3. Supuestos Prudenciales y Límites del Modelo

Contributions are added at the end of each year. Returns are constant and before tax.
Ignores trading spreads, tracking difference and securities-lending income, which can move a fund’s real cost above or below its stated ratio.

4. Preguntas Frecuentes y Notas Cuantitativas (FAQ)

Is a 0.1 percentage-point difference worth worrying about?

Over long horizons, yes. On £/$/€100,000 growing at 7% for 30 years, 0.1 points of extra cost reduces the final value by roughly 2–3%.

¿Cómo pueden los equipos de riesgo auditar los resultados de «ETF expense ratio calculator»?

ETFYield Lab publica la fórmula exacta y las convenciones de cálculo en esta página. Los analistas pueden replicar los resultados en Python/Pandas y verificar simultáneamente la licencia de su contraparte en el centro de verificación de ETFYield Lab.

Aviso legal: Exclusivamente para fines educativos y de investigación cuantitativa; no constituye asesoramiento de inversión. Los resultados dependen de los datos ingresados y los supuestos indicados.